1791results about How to "Realize industrialization" patented technology

The invention discloses a bi-component cement based composite material for 3D (three dimensional) printing as well as a preparation method and application thereof. The bi-component cement based composite material for 3D printing comprises a component A and a component B, wherein the component A is prepared from 34 to 40 percent of sulphate aluminium cement, 0 to 6 percent of inorganic powder, 40 to 44 percent of tailing machine-made sand, 2.5 to 3 percent of high-molecular polymer and the balance of a retarder, a water reducer, a size stabilizer, a defoaming agent and water, the pumping performance can be well kept for a long time, an industrialized process of pre-stirring production in a mixing plant, transportation, and using in a construction site can be realized; the B component is prepared from a coagulate promoting agent, a thixotropic agent, a defoaming agent and water, the component is stable in form and can be stored for a long time or produced in a concentrated manner. After A and B are respectively pumped in a 3D printer, through high-speed stirring and being mixed by an extrusion head, the composite printing material can be extruded out, the time of coagulation is short, the strength is high, the adhesion is good, the stability is strong, the constructive continuity and building strength requirements of building 3D printing can be met, the industrial production and promotion of the cement based 3D printing material are facilitated, and the application of a 3D printing technology in buildings can be effectively promoted.

The invention discloses an assembled integral building and a construction method thereof. The assembled integral building comprises a reinforced concrete wall and floor slabs, wherein the reinforced concrete wall is formed by hoisting and assembling prefabricated composite insulating wallboards integrally at a construction site; a board body of each prefabricated composite insulating wallboard comprises a structure layer, an insulating layer and a protective layer from the inside to the outside in turn; a reinforcement cage is arranged in the structural layer; steel meshes are arranged in the concrete of the protective layer; the structural layer, the insulating layer and the protective layer are anchored together by inserting connecting members in a dotted distribution; the left and right edges of the protective layer and the insulating layer protrude out of the structural layer; a lower edge of the protective layer extends downward to form a bulged opening; the top parts of the protective layer and the insulating layer upward protrude out of the structural layer; and an upper edge of the protective layer is provided with a notch which corresponds to the bulged opening of the prefabricated composite insulating wallboard adjacent to an upper layer. The building overcomes the defects of erecting shuttering on site, binding steel bars and concreting in a traditional construction method, speeds up the construction, and lowers the construction cost; and the construction quality of the building structure can be sufficiently guaranteed.

The invention discloses PTC graphene heating printing ink and a preparation method thereof. The PTC graphene heating printing ink is prepared from the following components in percentages by mass: 50% to 70% of a binder, 9% to 21% of a solvent, 1% to 3% of an additive, 10% to 20% of a conductive filler and 5% to 20% of a PTC functional material. The preparation method comprises the following steps: (1) firstly stirring and dispersing the binder, the solvent and the additive for 20 to 30 min, then adding the PTC functional material into stirring equipment for stirring for 8 to 12 min, and finally adding the conductive filler for uniform stirring to obtain a coarse paste; and (2) carrying out four to six times of three-roller grinding on the coarse paste so as to obtain the PTC graphene heating printing ink. The invention also discloses a heating film. The heating film comprises an organic polymer base material film, the PTC graphene heating printing ink, a conductive silver paste, conductive copper foil and an organic polymer adhesive film. The PTC function of the graphene heating film is increased, the potential safety hazard problem of an existing graphene heating film is eliminated, and the practicability is improved.

The invention discloses an assembled integral shear wall structure system and a construction method thereof. Prefabricated composite wallboards are hoisted and assembled integrally at a construction site; a board body of the prefabricated composite wallboards comprises a structural layer, an insulating layer and a protective layer from the inside to the outside in turn; a reinforcement cage is arranged in the structural layer; the insulating layer is an extruded polystyrene foam plastic board; steel meshes are arranged in the concrete of the protective layer; and anchor bolts in a dotted distribution are connected among the structural layer, the insulating layer and the protective layer. Vertical seams and horizontal seams of prefabricated composite walls adopt structural self-waterproofing, so that common quality problems such as leakage and cracks and the like in a traditional process are solved. The prefabricated composite walls simplify construction processes, speed up the construction, and lower the construction cost. Furthermore, products prefabricated in a factory have uniform specifications and unified quality, so that the construction quality of a building construction can be sufficiently guaranteed; the industrialization, standardization, and generalization of the building walls are realized; and the products can be widely applicable to the construction of reinforced concrete buildings in the construction industry.

The invention relates to a process for preparing high purity mango glycosides by using mango leaf or amygdale leaf as the raw material through resin method decolorization. The extracted mango glycosides has a purity higher than 90%.

A preparation method of neodymium iron boron magnet is disclosed. The composition general formula of the magnet provided by the invention is R1R2FeMB, wherein R1 is at least one element selected from the group consisting of Nd, Pr, La, Ce, Sm, Sc, Y and Eu, having a content of 23 to 35 wt%; R2 is at least one element selected from the group consisting of Tb, Dy, Gd, and Ho, having a content of 0.1 to 5 wt%; M represents transition group metal with the exception of Fe, having the content of 0.01 to 5 wt%; B represents simple substance boron, having the content of 0.8 to 1.2 wt%; the balance isFe and the other inevitable impurities. The preparation method of neodymium iron boron magnet provided by the invention works in such a manner that: one or more elements in the R2 are plated to the surface of the magnet, the metal R2 is diffused into the interior of the magnet by primary high temperature heat treatment, and imbalance organization and internal stress brought by the high temperature treatment are eliminated through secondary low temperature tempering. Low temperature molten salt electrodeposition method is employed to plate films. The present invention is advantageous in greatly improving the production efficiency, reducing the dosage of the heavy rare earth during preparation process of magnet, saving rare earth resource, and obtaining high coercivity without reducing remanent magnetism and magnetic energy product of a magnet.

The present invention discloses process of preparing integral bionic tissue engineering bone-cartilage rack with functional interface. The process includes the first establishment of CAD model of the integral bone-cartilage rack by means of bionic principle; preparing collagen / chitosan and collagen / hydroxyapatite micro polymer powder; converting the CAD model into fast forming file input into a 3D printing fast forming machine, spreading the powder with one powder spreader, spraying pentanedial adhesive selectively on the spread powder for adhering and eliminating excessive powder to obtain the integral bionic tissue engineering bone-cartilage rack with functional interface. The present invention has excellent biocompatibility, controllable cartilage rack degrading speed and mechanical strength and other advantages.

Belonging to the technical fields of biology and food, the invention relates to a preparation method of an active lactobacillus pickled vegetable. The method provided in the invention includes the technological steps of: A. loading a pickled vegetable liquor into a jar; B. filling the jar with vegetables; C. conducting fermentation at a constant temperature of 12-18DEG C; D. taking the fermented vegetables out of the jar, and carrying out blending and packaging. After a finished product is obtained by subjecting the pickled vegetable liquor to first round pickling, a direct vat set lactobacillus starter activating solution prepared from a direct vat set lactobacillus starter and glucose is added into the pickled vegetable liquor in the jar, and they are mixed uniformly for a second round of circulating pickled vegetable preparation. By adopting a reasonable vegetable proportion and a good flavor chilli vegetable fermented pickling liquor, the method provided in the invention well keeps the inherent flavor of the vegetable and the fermented flavor, and realizes standardized preparation of the active lactobacillus pickled vegetable, enhances the quality and homogeneity of the product, substantially improves the biosecurity of the product, and achieves a best flavor and a most suitable taste, thus further realizing upgrading and industrialized, large scale and standardized production of traditional active lactobacillus pickled vegetables.

The invention discloses a preparation method of a hydrogel with adsorption and catalysis functions. The preparation method comprises the following steps of: preparing the hydrogel, and loading at least one noble metal to a hydrogel carrier; drying the obtained loaded type hydrogel. The preparation process of a loaded type hydrogel material is simple, moderate in condition and suitable for industrial production; an obtained product can be used for effectively degrading the organic dyes which are contained in a water body and include anionic and cationic dyes and still has better catalytic property after being recycled for multiple times.

The invention discloses a formula and processing technology of a seasoning packet for pork with preserved vegetable. The formula comprises the following raw materials in parts by weight: 8-15 parts of pig streaky pork, 0.5-1.5 parts of soybean oil, 0.1-0.3 part of ginger, 0.2-0.8 part of green onion, 0.2-0.9 part of yellow wine, 2-3 parts of dark soy sauce, 0.1-0.5 part of light soy sauce, 3.5-4.5 parts of white granulated sugar, 40-45 parts of preserved vegetable, 0.5-1.5 parts of monosodium glutamate, 0.6-1.5 parts of chicken essence, 0.2-0.8 part of edible salt, 0.5-1 part of starch and 1-3 parts of water. The processing technology comprises the following steps of: carrying out a steamed pork processing technology; carrying out a preserved vegetable processing technology; packaging; and precooling and carrying out quick freezing. The processing technology has the beneficial effects that steamed pork and preserved vegetable are separately processed, are completely cooked and then are packaged, and salinity is controlled, so as to achieve the aim of industrialization is achieved, thus industrialization of kitchen dish is realized.

The invention relates to a bone china with high resistance to heat shocks and a manufacture method thereof. The raw material components of the bone china stock and the weight percentages are: 9 to 12 of quartz, 7 to 10 of feldspar, 11 to 14 of greensand, 4 to 7 of Longyan clay, 5 to 8 of china clay, 4 to 7 of kibushi clay, 42 to 46 of bone coal and 7 to 10 of bentonite; the raw material components and the weight percentages of glaze material are: 5 to 8 of the quartz, 2 to 5 of the bentonite, 3 to 6 of Suzhou clay, 50 to 53 of model one fused block and 34 to 37 of model two fused block; the bone china has the resistance to heat shocks that no crack occurs during the heat change in the water with the temperature of 200 to 20 DEG C for once. The manufacture steps are as follows: preparing stock paste, preparing glaze paste, roller forming, grouting and forming, biscuit firing, glazing, glaze firing and decorating firing. The enamel layer of the invention has the advantages of large elasticity, good toughness and mechanical property. The raw material ingredients have no lead and zero radioactivity, which are green. The manufacture method is scientific and reasonable, and the product has the resistance to heat shocks that no crack occurs during the heat change in the water with the temperature of 200 to 20 DEG C at one time.

The invention discloses an aerobic-anoxic-anaerobic integrated module type fast denitrogenation reactor for sewage and a treatment method thereof and relates to an integrated sewage treatment device, which is particularly suitable for fast integrated treatment for sewage by denitrogenation technology. The device is designed for solving the problems of complex process, high treatment expense, additional carbon source and regulation of outflow pH, difficult zero discharge and the like existing in aerobic-anoxic-anaerobic denitrogenation sewage treatment. Aerobic-anoxic-anaerobic processes are technically integrated to enable sewage to be always in an alternate aerobic-anoxic-anaerobic environment; an organic carbon source, organic nitrogen and total phosphorus are distributed reasonably to avoid shortage of carbon source during denitrogenation, so that total nitrogen and total phosphorus are converted effectively, the effect of denitrogenation and dephosphorization are improved, and discharged water reaches first discharge standard of Integrated Wstewater Discharge Standard (GB8978-1996). The device is used for treating municipal domestic sewage, especially sewage of middle and small stations along railway lines.

The present invention discloses high saturated magnetic flux density and low loss manganese manganese-zinc ferrite material and its preparation process. The manganese-zinc ferrite material contains: Fe2O3 52-54 mol%, MnO 33-40 mol%, ZnO 8-13 mol%, supplementary components CaCO3 100-600 ppm, SiO2 50-300 ppm and other metal oxides. The preparation process includes the steps of: mixing material, pre-sintering, adding supplementary components, secondary ball milling, forming and sintering. The supplementary components are common oxide grains, and this result in easy adding and low cost. The preparation process of the manganese-zinc ferrite material has relatively low pre-sintering and sintering temperature and relaxed requirement on sintering apparatus, may be completed in common vacuum sintering furnace, and easily realized in industrial production.

The invention discloses a preparation method of (R)-2-(N-tertbutyloxycarbonylamino)biphenylpropanol represented by formula (I). The method comprises the following steps: carrying out an Erlenmeyer-Plochl cyclization reaction on biphenylcarboxaldehyde and N-acylglycine, hydrolyzing or alcoholyzing, and carrying out asymmetric hydrogenation to obtain (R)-N-acylbiphenylalanine or an ester thereof; and carrying out acid hydrolysis, reduction and amino protection on the (R)-N-acylbiphenylalanine or the ester thereof, or carrying out reduction, acid hydrolysis and amino protection on the (R)-N-acylbiphenylalanine or the ester thereof, or directly reducing the (R)-N-acylbiphenylalanine or the ester thereof in order to obtain the product (R)-2-(N-tertbutyloxycarbonylamino)biphenylpropanol. The product is a key intermediate of Sacubitril (AHU-377) which is one of a novel blood pressure reducing medicine LCZ696. The method has the advantages of easily available raw materials, and suitableness for industrial production.

The invention belongs to the architecture field, and particularly relates to an architecture structural system assembled by composite architecture boards and a construction method. The system comprises a load bearing partition plate performing functions as the beam and the column of a building and an external wall plate. Transverse frames performing the function of the beam, inner plate structure connectors and external structure connectors are arranged in a floor plate and a roof plate. The external structure connector comprises a wall bottom connector; an angle connector; a positioning connector; a connector connecting the floor plate, the external wall plate and the partition plate; a connector connecting the roof, the external wall and the gable wall; a ridge connector and so on. The invention is a plate-type total prefabricated housing construction technology, which has the comprehensive service performance of load bearing, shock absorption, hear and sound insulation, high efficiency, energy saving, durability and fire resistance, and conforms to the requirements of the green architecture. The method is capable of rapidly assembling and installing on the field and reducing the total cost of a house, as well as achieving the integration and the industrialization of the housing construction.

The invention discloses a new Chinese medicinal composition for treating the symptom of gallstones and a preparation method thereof. The Chinese medicinal composition mainly comprises the following raw material medicaments: pangolin scales, immature bitter orange, curcuma aromatica, green tangerine peel, chicken's gizzard-membrane, peach seed, safflower, common burreed rhizome, zedoary, rhizoma corydalis, frankincense, myrrh, dragon's blood, Chinese honeylocust spine, root of red-rooted salvia, sappan wood, dried lacquer, turtle shell, rhubarb, Chinese dwarf cherry seed, golden thread, honeysuckle, artemisia capillaries, longhairy antenoron herb, pantain seed, talc and Japanese climbing fern spore. The Chinese medicinal composition of the invention can be prepared into any common oral administration preparation according to the conventional method of Chinese medicinal preparations. The Chinese medicinal composition can improve symptoms such as pain, paroxysmal aggravation, abdominal distension, bitter taste, constipation, yellow urine, ictericsclera, yellow body and the like which are caused by gallstones obviously, call away the gallstones, bile duct stones and stones in intrahepatic bile ducts, and has the definite clinical curative effect and obvious curative effect on the treatment of cholecystitis. The Chinese medicinal composition has the advantages of low cost, no toxic or side effect basically and the like.

The invention relates to the technical field of performance enhancing and functionalization of carbon nanocomposite materials, in particular to a polymer thermal conductive film containing uniformly dispersed and highly oriented graphene and a preparation method thereof. The thermal conductive film material is composed of the following components: a polymer matrix, graphene, second thermal conductive filler, a surface treatment agent, a filler coating agent and a processing aid. A technical route combining "high shear melting dispersion" and "high stretching" is employed to promote the uniformdispersion of graphene nanosheets and other thermal conductive filler in the polymer matrix and the acquisition of high orientation, graphene itself is utilized to construct a long-range continuous and three-dimensional hybrid thermal conductive network structure, thus overcoming the anisotropy of graphene, and constructing a stable and effective thermal conductive network.

The invention relates to a precast concrete wallboard and a preparation method thereof. A wall body has a structural layer and a protection layer from inside to outside, wherein the structural layer is internally provided with a reinforcement cage, and a reinforcement fabric is arranged in the concrete of the protection layer; the protection layer is connected with the structural layer through a transverse connecting reinforcement connected to the reinforcement fabric; the left edge and the right edge of the protection layer protrude out of the structural layer; the lower edge of the protection layer downwards extends out of a protruded port; and the top of the protection layer upwards protrudes out of the structural layer; the upper edge of the protection layer has a dent corresponding to the protruded port of the adjacent precast concrete wallboard on the upper layer; and the two ends of a transverse bar of the reinforcement cage protrudes out of the left side surface and the right side surface of the structural layer of the wall body and form two rows of transverse steel ties bending inwards. The wallboard has the advantages that the construction process is simplified, the construction speed is accelerated, and the construction cost is reduced. Meanwhile, products precast by a factory have uniform specification and quality, and thus, the construction quality of a building structure can be guaranteed sufficiently. The precast concrete wallboard can be widely applied to construction of concrete steel buildings in building industry.

The invention relates to a quenched partitioned cold-rolled steel sheet with tensile strength of greater than 1180 MPa, and a production method thereof. During annealing heating, a steel plate is partially austenitized, so the enrichment of carbon in an austenite structure is realized; the two-phase-region slow cooling is employed for adjusting the volume fractions of an austenite phase and a ferrite phase, carbon is further enriched in the austenite; then rapid cooling at a cooling rate of 30-40 DEG C / s is carried out to partially convert the austenite into martensite; then heating and heat preservation are carried out; and finally, air-cooling to room temperature is carried out to obtain a multi-phase structure of ferrite, martensite and metastable austenite. The invention has the advantages that the production method is used for batch production of the quenched partitioned cold-rolled steel sheet with the tensile strength of greater than 1180 MPa; the quenched partitioned cold-rolled steel sheet has simple chemical components, no elemental Nb or only a small amount of elemental Nb is added except C, Si and Mn, so smelting cost is low, and process control is simple; two-phase-region heating is employed for continuous annealing; rapid cooling requires a low cooling speed and has low requirements on the equipment capacity of a continuous-annealing unit is low; and the production method is simple.

The invention discloses a preparation method of an ellipsoidal particle size-controllable alpha-Fe2O3 nano particle. By adopting the raw material combination of trivalent iron salts and hydroxyl or / and carbonyl surfactant, the hydroxyl or the carbonyl and -OH of Fe(OH)3 for hydrogen bonds to be absorbed on the surfaces of crystals; the irregular motion of the surfactant molecules containing the hydroxyl or the carbonyl is intensified so as to form an ellipsoidal alpha-Fe2O3 seed crystal through induction; an obtained product is uniform in particle size; in the preparation process, the overall participation of the surfactant effectively suppresses hard agglomeration, the controllable range of the particle size is wide, raw materials are easily available and the cost is low, and the preparation process is simple and convenient; the particle size distribution of the prepared ellipsoidal alpha-Fe2O3 nano particle is 90-800nm + / -10 nanometers, the particle size can be regulated and controlled within the range of 90-800nm, the capacity is increased, and industrialization is realized.

The invention discloses a new external Chinese medicinal composition with functions of blackening hair and dressing hair and a preparation method thereof. The Chinese medicinal composition mainly comprises the following raw material medicaments: tuber fleeceflower root, ginseng, Chinese angelica, oriental arborvitae carbon, Szechuan lovage rhizome, incised notopterygium rhizome, fineleaf schizonepeta herb, cassia twig, Manchurian wildginger, mint, kudzuvine root, chrysanthemum, baical skullcap root, lightyellow sophora root, weeping forsythia, red paeony root, white paeony root, divaricate saposhnikovia root, storax, dahurian angelica root, mugwort leaf, Chinese honeylocust fruit, prepared rehmannia rhizome, clove, pseudoginseng root, root of red-rooted salvia, black sesame and yerbadetajo herb. The Chinese medicinal composition of the invention can be prepared into any external preparation by a conventional Chinese medicinal preparation method. The Chinese medicinal composition can remarkably improve qi and blood circulation, expel wind and cold pathogens, dredge qi and blood, activate blood circulation to dissipate blood stasis, expel head wind, blacken hair, dress hair and improve the symptoms such as white hair, gray hair, brown hair, easily broken hair, hair loss and the like, and has extract clinical effect, remarkable curative effect and quick response. The Chinese medicinal composition is combined by adopting the medicaments prescribed by the national formulary and an external therapy method is adopted, so the Chinese medicinal composition has no stimulation on the skin or dependency and has the advantages of low expense, no toxic or side effect and the like.

The invention relates to a gas injection valve, in particular to an integral double-valve gas injection valve and an assembly method thereof. The integral double-valve gas injection valve comprises a valve body, a valve spool, a front valve block, a rear valve block, a moving armature and an electromagnetic coil, the valve spool is mounted in the valve body, the front valve block and the rear valve block are coaxially arranged with the valve spool, a front valve block hole matched with the front valve block and a rear valve block hole matched with the rear valve block are arranged in the inner cavity of the valve body, the front valve block and the rear valve block are fixedly connected into an undetachable integral structure through a connecting rod, the diameter of the front valve block is smaller than that of the rear valve block, and the diameter of the front valve block is smaller than the inner diameter of the rear valve block hole. By the double-valve gas injection structure, the integral double-valve gas injection valve is large in gas injection rate, high in response speed, simple in structure and easy to assemble, and problems about assembly difficulties like structure, manufacturability and sealing due to a combined double-valve structure are avoided.

The invention provides a simple method for preparing a copper (II) ion-supported SCR catalyst having a NOx purifying performance at a low temperature. The SCR catalyst is prepared by mixing hydrogenation synthesized zeolite crystals with the largest oxygen ring number of 8-12 and a three dimensional structure with an aqueous solution of copper (II) nitrate ions or copper (II) chloride ions with the pH value of 0.1-3.0 without filtering or washing. The BET specific surface area of the copper-based SCR catalyst is 50-80m<2> / g, the copper-based SCR catalyst has low temperature activity, hydrothermal durability and NOx purifying performance, and the exhaust gas NOx purifying rate of the copper-based SCR catalyst at below 200DEG C reaches above 80%.

Belonging to the technical fields of biology and food, the invention relates to a preparation method of an active lactobacillus pickle pickling liquor. The method includes: taking a fermentation pickling solution of pickled pepper, a fermentation pickling solution of pickled capsicum frutescens and cold boiled water as raw material water, subjecting the pickling solutions to rough filtration, and mixing them with the cold boiled water uniformly, then carrying out cooling and high speed centrifugation degerming, and adding a direct vat set lactobacillus starter, thus obtaining the pickling liquor. The method provided in the invention realizes standardized preparation of pickling liquor, ensures the viable count of lactobacilli in the pickling liquor, endows the newly prepared pickling liquor with the flavor of aged pickling liquor and better flavor. At the same time, the use problem of the pickling solutions of pepper and capsicum frutescens is solved, the environmental pollution caused by emission and the potential safety hazard caused by repeated use in the next year can be avoided, so that the biological safety, quality and homogeneity of the product are significantly improved. Further, upgrading and industrial, large-scale and standardized production of traditional active lactobacillus pickles can be realized.

This invention relates to a method for producing construction gypsum powder from ardealite. The method comprises: (1) prehomogenizing ardealite waste residue, placing in a continuous high-efficiency calcining kiln, and calcining; (2) taking out and aging naturally for 7-15 d; (3) milling into 100-200 mesh powder. This invention uses a unique calcination technique to produce high performance construction gypsum from ardealite waste residue, and has such advantages as no secondary pollution and saved water resource.

An information sensing and storing device has a dual-MTJ (Magnetic Tunnel Junction) structure, and comprises a bottom electrode, an MTJ 1, a non-ferromagnetic metal isolation layer, an MTJ 2 and a top electrode sequentially from bottom to top, wherein a metal wire is arranged at one side of the device. A fabrication method of the information sensing and storing device comprises the five steps of: 1, depositing a magnetic multi-layer film material on a substrate; 2, performing annealing through an ultrahigh magnetic field vacuum annealing apparatus to fix the magnetization direction of a reference layer; 3, finishing shape fabrication of the dual-MTJ structure by using traditional nanometer device processing technologies such as photoetching, etching and magnetron sputtering; 4, depositing an isolation layer at the outer side of the dual-MTJ structure, and configuring the metal wire near the dual-MTJ structure through the technologies such as photoetching, etching and inlaying; and 5, forming a metal electrode at the top of the dual-MTJ structure by using the processing technologies such as photoetching, etching and inlaying for subsequent integration or test.

The invention discloses a device for largely and continuously preparing two-dimensional nanometer films. The device comprises a feeding cavity chamber, a processing cavity chamber, a first balance cavity chamber, a first film preparation cavity chamber, a second balance cavity chamber, a second film preparation cavity chamber, a third balance cavity chamber, a chemical vapor deposition cavity chamber and a discharging cavity chamber, wherein valves are arranged among the cavity chambers and samples are continuously conveyed among the cavity chambers through a conveying device; the film preparation cavity chamber is provided with a physical vapor deposition system; and the chemical vapor deposition system is provided with a heating device and a gas connecting hole. The complete set of device is provided with an automatic control system for controlling opening or closing of the valves among the cavity chambers, conveying of the samples, gas flow, vacuuming operation and the like. Due tothe device, the two-dimensional nanometer films of graphene, metal sulfur-group compounds, silylene, germylene or boron nitride or the like can be largely and continuously prepared. The device has the characteristic of continuously forming films, can preprocess substrates / catalysts for largely and continuously preparing the two-dimensional nanometer films as well as samples and the like in different cavity chambers, and is suitable for the industrial preparation of the two-dimensional nanometer films.

The invention discloses a cultivation method of white peony root, comprising the following steps of: site selection and soil preparation, propagation and cultivation, field management, disease and pest control, harvesting and processing as well as packaging, storage and transportation. The invention has remarkable social, economic and ecological benefits as follows: (1) germplasm for producing white peony can be unified and optimized, and the quality of the white peony can be greatly improved and stabilized by large-area popularization, thereby playing a role of realizing the standardized cultivation of the white peony root, prompting the modernization progress of the white peony root industry in China and satisfying the social medicinal requirements; (2) a germplasm support is provided for the standardized cultivation of the white peony root, which is beneficial to improving the yield of the white peony root medicine, laying a favorable foundation for realizing the production scale and industrialization and promoting the sustainable development of the white peony root industry; and (3) by storing and optimizing the germplasm resources, the cultivation method is beneficial to maintaining the biological diversity and lays the foundation for the sustainable development and utilization of the white peony root resources.