34results about How to "Block growth" patented technology

The invention discloses a tunnel fire-proof plate and a manufacture method thereof, relates to a fire-proof material and provides a fire-proof plate which is characterized by light weight, environment protection, high fire retardance, high intensity, low smoke formation and low toxicity, etc. and is applicable to the use of the tunnel and manufacture technique thereof; the tunnel fire-proof plate consists of base material, a modifying agent, reinforcing fiber and a bonding agent, wherein the base material comprises kaolinite, calcium carbonate, magnesium hydroxide and aluminium hydroxide; the modifying agent is expanded vermiculite and expanded perlite; the reinforcing fiber is the composition of inorganic fiber and polymer fiber; and the bonding agent is cement. All the ingredients are added into a high-speed disperser according to the proportion and dispersed uniformly; water is added and stirring is carried out so as to form paste; reverse mould is carried out; the obtained mixture is demoulded after being placed for one day at the room temperature, then dried after being cured for 20 to 28 days under the condition of 60 percent to 70 percent of relative humidity and the finished product is the tunnel fire-proof plate.

The invention discloses a carbon / carbon composite material laminated coating and a preparation method thereof. The laminated coating is sequentially composed of a SiC under layer, a SiC transition layer and an alternative layer of SiC layer / ceramic layer on a base body of the carbon / carbon composite material. According to the preparation method of the carbon / carbon composite material laminated coating, a preparation method of the SiC under layer is realized by brush coating, spray coating or magnetron sputtering. A preparation method of the SiC transition layer and the alternative layer of SiC layer / ceramic layer sequentially comprises the following steps: ultrasonically cleaning the carbon / carbon composite material with the SiC under layer through acetone, and drying the material; cleaning the material through ion source sputtering; and preparing the SiC transition layer and the alternative layer of SiC layer / ceramic layer through magnetron sputtering. The prepared laminated coating disclosed by the invention has excellent oxidation resistance and thermal shock resistance at 1500 DEG C. The preparation method disclosed by the invention has a characteristic of being able to control thickness, and the prepared coating is good in thickness uniformity.

A detoxicating synergistic Chinese medicine for radiotherapy or chemicotherapy is prepared from astragalus root, wolfberry fruit and ganoderma. Its advantage is high curative effect.

The invention provides a method for biofiltration processing of soot exhaust gas on basis of roofing greening nutritive soil, comprising the following steps: taking roofing greening vegetation and the nutritive soil thereof as biological filler; arranging a supporting layer and a gas distribution device below the biological filler; spraying nutrient solution onto the biological filler; and when liquid phase pH is 6.0-7.5 and temperature is 20-35 DEG C, processing soot exhaust gas. The method of the invention has the advantages of large biomass, high mass transfer efficiency, small possibility of blocking, easy operation and control and the like; the invention expands the application of the roofing greening engineering, combines roofing greening with the processing of soot exhaust gas with a biological method and saves operation cost and floor space.

The invention relates to a preparation method of an antibacterial low-surface energy modified polyurethane antifouling coating agent. The method comprises the steps of performing a free radical polymerization reaction between a monomer containing a capsaicin functional group and polysiloxane modified acrylate, a hydrocarbon-chain acrylate monomer and a hydroxyl-containing acrylate monomer to obtain organic silicone modified acrylate resin containing hydroxyl and capsaicin functional group; finally, uniformly mixing and stirring the resin and a polyisocyanate curing agent proportionally, and crosslinking and curing to obtain an antibacterial low-surface energy modified polyurethane antifouling coating agent. By adopting the method provided by the invention, the prepared low-surface energy modified polyurethane antifouling coating agent combines double effects of low surface energy and antibacterial function; moreover, a crosslinking and curing mode controllable at room temperature is provided, and the practical application value is good. The antifouling coating agent is used as a marine antifouling paint which can inhibit the adsorption of marine organisms and kill the microorganisms adsorbed to the hull surface through the capsaicin functional group.

The invention discloses a method for preparing a low temperature epoxy fatty acid branched-chain alcohol ester improver for biodiesel and application thereof. The method comprises the steps of taking natural oil and branched-chain alcohol as raw materials to react in the presence of a catalyst, and carrying out distilling, standing and layering on the product to obtain supernatant fatty acid branched-chain alcohol ester; and then mixing the fatty acid branched-chain alcohol ester with formic acid, adding an epoxidation catalyst, reacting while dropwise adding hydrogen peroxide, and carrying out standing, layering, neutralizing and dewatering on the product to obtain epoxy fatty acid branched-chain alcohol ester. The invention develops an epoxy fatty acid branched-chain alcohol ester improver aiming at the characteristics of biodiesel. The method has the following beneficial effects: by branching bonds of fatty acid ester and introducing a polar group onto the interior double bond structure of the fatty acid ester, the improver can be easily mixed with the biodiesel to form uniform solution, thus being beneficial to blocking further growth of solid crystals; and after different oil-based biodiesels and the improver are mixed, the low temperature fluidity of the biodiesels can be obviously improved, the condensation point and cold filter point can be reduced by 5-15 DEG C, the calorific value can be improved, and the viscosity can be reduced.

The invention provides a manufacture process of polished round-grained rice containing rich gypenoside. A preparation method comprises the following steps that gypenoside, dandelion and lily extraction concentration liquid are uniformly mixed with prepared into wax gourd pulp, tremella pulp, ramie and honey, then, the mixture is stirred with polished round-grained rice powder to obtain particle materials, then, the mold forming is carried out by adopting granulation equipment according to the puffing and extrusion program, slight yellow bright polished round-grained rice like rice grains is manufactured, the drying, the granulation, the sterilization and the package are carried out, and the polished round-grained rice is obtained.

The invention discloses artificial saliva and a preparation method thereof. The artificial saliva is prepared by main components of chitosan and a grapefruit seed extractive and taking water for injection or purified water as a carrier. The artificial saliva is applicable to the perioperative period and tumor, relieving mouth drying of a radiation and chemotherapy patient and curing and preventing complication caused by mouth drying. Refractory dental ulcer caused by unbalance of oral bacteria due to hypoimmunity is cured. The artificial saliva is applied to infection of pathogenic microorganisms of bacteria and the like caused by unbalance of oral bacteria due to hypoimmunity of a sever clinic patient and a long-time bedridden patient and is used for preventing pulmonary infection so that the use amount of antibiotics is reduced. The artificial saliva has no toxicity to a human body, no irritation to mucosa and no sensitization, excellent biodegradability and good anti-bacteria, anti-inflammation, pain relieving, hemostasis and ulcer surface curing promoting effects.

The invention relates to a nontoxic liquid shampoo and a preparation method thereof. The nontoxic liquid shampoo is prepared from, by mass, 45-55% of olive enzyme, 1-5% of licorice extract, 1-5% of polygonum multiflorum extract, 1-5% of soapberry extract, 0.5-1.5% of wheat germ oil, 2-8% of brown sugar, 2-8% of glucose and 25-35% of amino acid. The nontoxic liquid shampoo contains various kinds of nutritive substance, can sufficiently moisten hair roots, make hair black and dense and prevent hair losing, can condition hair while cleaning hair and nourish hair, and has the quite good commercial prospect.

A fresh-keeping bacteriostatic lyophobic porous film for juicy food and a preparation technology thereof. The porous film has a microstructural single layer or multiple layers, wherein each single layer comprises a contact layer, an interface layer and a back side layer. The preparation technology comprises raw material proportioning, one-step or two-step vacuum pore-forming by pore-forming method and machinery pore-forming, wherein the raw materials contain 0-100% of PE, 100-0% of PP, 0-10% of a bacteriostatic agent and 0-10% of other components (such as a hydrophilizing agent, a pigment and the like); the vacuum pore-forming refers to plastic raw material technological film forming as well as pore forming by negative pressure suction; one step method refers to online film-forming and pore-forming by one step; two step method refers to film forming and pore forming respectively completed on two equipment; and the machinery pore-forming refers to pore forming by knife mold extruding, shearing and penetrating under the action of mechanical force. The porous film, which is prepared by the preparation technology and has a porous structure, has food fresh-keeping, bacteriostatic and anti-seepage effects.

The invention provides a preparation method of sturgeon freeze-dried powder and the sturgeon freeze-dried powder, and belongs to the technical field of food processing. The preparation method comprises the steps that sturgeon meat cartilage slurry is subjected to enzymolysis, enzyme deactivation and filtering, and sturgeon enzymolysis filtrate is obtained; sturgeon skin head and tail slurry is mixed with a nitrogen source and a carbon source, and fermenting is performed to obtain sturgeon fermentation filtrate; and the sturgeon enzymolysis filtrate is mixed with the sturgeon fermentation filtrate, and vacuum freeze-drying is performed to obtain the sturgeon freeze-dried powder. The sturgeon freeze-dried powder obtained by enzymolysis and probiotic fermentation not only has no fishy smell,but also has a unique fermentation flavor and entire nutritional ingredients, and the sturgeon freeze-dried powder is small in average molecular weight, strong in activity, high in bioavailability andeasier to absorb for a human body.

The invention provides a method for preventing derris trifoliata in a mangrove forest, and belongs to the technical field of mangrove forest protection. The parts being 10-20 cm above rhizomes of thederris trifoliata are cut off at the lowest tide level all day long in the mangrove forest, then an acetic acid solution is sprayed to the rhizomes of the derris trifoliata once, and artificially-bredcoleopteran weevils insects are placed on the derris trifoliata; and semen cuscutae stems are placed at the canopy positions, on the water surface, of the derris trifoliata, and after semen cuscutaeis successfully parasitized on the derris trifoliata, an acetic acid solution is sprayed to the rhizomes of the derris trifoliata again. Semen cuscutae and coleopteran weevils insects are introduced and cooperate with acetic acid root spraying, prevention of the derris trifoliata is effectively achieved, operation is easy, environment friendliness is achieved, and the derris trifoliata is thoroughly eradicated from the source.

The invention involves a pesticide, particularly relates to using mixture of calcium cyanamide or calcium cyanamide and calcium oxide for killing schistosome ovum. The invention has good effect for killing schistosome ovum, blocks the growth chain of schistosome from the sources without environmental pollution, increases the fertilizer efficiency of animal and human excreta, while the calcium cyanamide is decomposed completely in the water without residues, and does not impact environment and aquatic organism in pound and lake. When the animal and human excreta containing calcium cyanamide is used as fertilizer, the fertilizer efficiency and nitrogen content are improved efficiently, so while killing maggots with calcium cyanamide, the nitrogen fertilizer is supplied, the product is economical and environmental friendly, has good economical effect.

The invention relates to the field of food processing, and particularly discloses garlic juice flour and a preparation method thereof. The garlic juice flour is prepared from the following raw materials in parts by weight: 100 parts of wheat flour, 1-25 parts of garlic juice and 1-2 parts of edible salt. The garlic juice flour and the preparation method thereof have the beneficial effects that the garlic juice flour is good in mouth feel, convenient to eat and simple to prepare; the garlic juice is prepared by standing for 1-2h at a normal temperature so as to carry out enzymolysis, is thus convenient to absorb by a human body, and ensures that the cancer resisting and preventing effect of the garlic is relatively good; the perfectness ratio of nutritional ingredients of the natural garlic is kept high, the nutrients of the garlic is furthest kept; the garlic juice subjected to enzymolysis improves the stability of the garlic juice flour, and thus the quality of the garlic juice flour is effectively improved, and the cost is lowered; juice in the garlic and wheat flour are fully utilized to be mixed, by adding a proper amount of water, the nutrients and the mouth feel of the garlic juice flour can be sufficiently ensured, and thus the edible range of the garlic is greatly enlarged, and the conventional single eating method is changed.

The invention discloses an acne-removing composition containing saw palmetto essential oil and a preparation method of the acne-removing composition. The acne-removing composition comprises the following components in parts raw material: 0.05 to 0.1 part of saw palmetto essential oil, 0.01 to 0.05 part of Chinese angelica ferulic acid, 0.5 to 2 parts of pueraria isoflavones, 0.5 to 3 parts of wheat protein extract, 1 to 10 parts of salicylic acid, 1 to 5 parts of nicotinamide, 0.5 to 5 parts of citric acid, 0.1 to 3 parts of zinc gluconate, 0.5 to 2 parts of aloe barbadensis refined freeze-dried powder, 0.05 to 1 part of pogostemon cablin essential oil, 0.01 to 0.1 part of chamomile essential oil, 0.5 to 3 parts of allantoin, 0.2 to 0.5 part of hyaluronic acid, 0.1 to 0.5 part of dipotassium glycyrrhizinate, 1 to 8 parts of a plant antibacterial component composition and 0.5 to 1 part of arbutin. The composition aims at all targets and links of acne morbidity and can effectively blockthe pathology physiological process of the acne, thereby achieving triple effects of controlling oil, removing acne and repairing acne marks.

The invention involves a pesticide, particularly relates to using mixture of calcium cyanamide or calcium cyanamide and calcium oxide for killing schistosome ovum. The invention has good effect for killing schistosome ovum, blocks the growth chain of schistosome from the sources without environmental pollution, increases the fertilizer efficiency of animal and human excreta, while the calcium cyanamide is decomposed completely in the water without residues, and does not impact environment and aquatic organism in pound and lake. When the animal and human excreta containing calcium cyanamide isused as fertilizer, the fertilizer efficiency and nitrogen content are improved efficiently, so while killing maggots with calcium cyanamide, the nitrogen fertilizer is supplied, the product is economical and environmental friendly, has good economical effect.

The invention relates to the field of food processing and particularly discloses garlic polysaccharide noodles and a preparation method thereof. The garlic polysaccharide noodles are prepared from the following raw materials in parts by weight: 100 parts of wheat meal and 1-50 parts of garlic polysaccharide syrup. The garlic polysaccharide noodles are good in taste, convenient to eat and easy to prepare; the garlic polysaccharide syrup is prepared by virtue of a low-temperature cooling technique, is convenient to be absorbed by a human body and preserves natural garlic nutrient contents; the perfectness ratio of the natural garlic nutrient contents is high, and the stability of garlic pulp is improved, so that the product quality is improved, the cost is lowered, and the added value of products is increased; and moisture in the garlic polysaccharide syrup is adequately mixed with the wheat meal for kneading, and only a proper amount of water is added, so that the nutrition and taste of the garlic polysaccharide noodles can be adequately guaranteed. Furthermore, after the garlic polysaccharide noodles are eaten by people, the cold and various bacterial infections can be effectively prevented, and the immunity of the organism can be enhanced.

The invention discloses a solar energy day and night different gas aeration and algal control device for shallow lakes. The device includes a suspended grid structure, a CO2 aeration system, an air aeration system, a solar power generation system and a controller. The CO2 aeration system and the air aeration system are arranged on the lower part of the suspended grid structure. The solar power generation system and the controller are arranged on the upper part of the suspended grid structure. The controller and the solar power generation system are connected to the air aeration system. The device of the invention realizes algal control in multiple ways to improve the water quality, supply power by using solar generation, which is efficient, energy saving, environmentally friendly and costsaving, is convenient in moving, can change an algal control area according to needs, which is strong in flexibility, is simple in device structure, small in size and convenient in operation and maintenance, and is especially suitable for controlling algae in the shallow lakes to improve the water quality.

The invention discloses a tobacco taste modification essence which mainly consists of the following components: 2-5 parts of maltol, 5-15 parts of trans-cinnamic acid, 1-5 parts of capric acid ethyl ester, 2-6 parts of glacial acetic acid, 40-60 parts of a date extract, 2-6 parts of an angelica dahurica tincture, 5-15 parts of a fenugreek extract, 5-15 parts of a tamarindus extract and 3-10 partsof propylene glycol. The tobacco taste modification essence disclosed by the invention is prepared from extracts prepared from natural plant raw materials such as the fenugreek extract, the tamarindusextract, sclareolide and the date extract, and common flavor enhancers such as maltol and capric acid ethyl ester as main components. The tobacco taste modification essence disclosed by the inventioncan be applied to a tobacco liquid and is capable of effectively removing spicy taste of tobacco smell, then cigarette can be relatively good in smoke satisfaction, high in fragrance quality and relatively soft and mellow and has the pleasant specific fragrance of tobacco and fragrance of nuts.

The invention relates to a preparation method of an antibacterial low-surface energy modified polyurethane antifouling coating agent. The method comprises the steps of performing a free radical polymerization reaction between a monomer containing a capsaicin functional group and polysiloxane modified acrylate, a hydrocarbon-chain acrylate monomer and a hydroxyl-containing acrylate monomer to obtain organic silicone modified acrylate resin containing hydroxyl and capsaicin functional group; finally, uniformly mixing and stirring the resin and a polyisocyanate curing agent proportionally, and crosslinking and curing to obtain an antibacterial low-surface energy modified polyurethane antifouling coating agent. By adopting the method provided by the invention, the prepared low-surface energy modified polyurethane antifouling coating agent combines double effects of low surface energy and antibacterial function; moreover, a crosslinking and curing mode controllable at room temperature is provided, and the practical application value is good. The antifouling coating agent is used as a marine antifouling paint which can inhibit the adsorption of marine organisms and kill the microorganisms adsorbed to the hull surface through the capsaicin functional group.

The invention discloses a traditional Chinese medicine composition for treating hysteromyoma and a preparation method, and belongs to the technical field of traditional Chinese medicine compositions.The composition is prepared from the following raw materials: 10 to 30g of processed pangolin scales, 15 to 45g of rhubarb roots, 10 to 30g of semen momordicae, 10 to 30g of chaulmoogra seeds, 10 to 30g of radix asparagi, 10 to 30g of liquorice roots, 15 to 45g of poria cocos, 15 to 45g of cortex albiziae, 30 to 90g of oysters and a medicament. All the medicines are combined together, and supply of tumor nutrition and blood is blocked due to the violent penetration force of wine, so that active tumor cells are quickly killed, the contractile function of the uterus is recovered to be normal, tumor growth is inhibited, atrophy and absorption of tumors are promoted as soon as possible, and the purpose of healing is achieved.

The invention provides a traditional Chinese medicine composition for treating pulmonary nodule and a preparation method and honeyed pills thereof and belongs to the technical field of traditional Chinese medicine. The composition is prepared from, by weight, 20-30 parts of radix rehmanniae, 10-15 parts of radix angelicae sinensis, 10 parts of fructus lycii, 15-20 parts of radix trichosanthis, 20-30 parts of radix paeoniae alba, 30-40 parts of stir-fried semen coicis, 10-15 parts of radix ginseng, 5-10 parts of herba ephedra, 10-20 parts of frankincense, 10 parts of myrrh, 20 parts of vinegar-treated tortoise plastron, 20 parts of vinegar-treated turtle shell, 30 parts of herba agrimoniae, 10-20 parts of fructus alpiniae oxyphyllae and 10 parts of fructus toosendan. The composition can effectively improve pulmonary nodule and various clinical symptoms caused thereby and has remarkable effect and no side effect.

The invention discloses an aromatase inhibitor prepared through plant extracts. The aromatase inhibitor is characterized in that the aromatase inhibitor includes, by weight percent, 20%-30% of wild buckwheat extracts, 40%-50% of radix tetrastigme extracts, 20%-40% of mulberry leaf extracts and an added traditional Chinese medicine composition used for preventing osteoporosis. The manufactured aromatase inhibitor can inhibit conversion from male hormones to female hormones and belongs to the aromatase inhibitor of a non-steroid kind, activity of aromatase is inhibited, the content of the female hormones in the body can be effectively reduced, and the aromatase inhibitor can be used for treating or preventing the breast cancer; and meanwhile, due to the fact that in the formula, the synergistic effect of various kinds of traditional Chinese medicines in the formula is utilized in the traditional Chinese medicine composite formula, the effect of the medicine for treating osteoporosis is sufficiently achieved

The invention relates to an RTN4B polypeptide, its monoclonal antibody, a hybridoma cell line producing the monoclonal antibody, and their preparation and application. The RTN4B polypeptide of the present invention contains the amino acid sequence shown in SEQ ID NO:1. The invention further discloses the monoclonal antibody prepared by using the RTN4B polypeptide, the hybridoma cell line producing the monoclonal antibody and their related applications in tumor treatment or prevention.

The present disclosure relates to a method for treating tumours. In particular, the invention relates to a new therapeutic use of nanoparticles as a sensitiser agent to radiofrequency radiation. More particularly, the invention relates to the use of nanoparticles in combination with radiofrequency radiations for the treatment of tumours, the radiofrequencies inducing hyperthermia of said tumour comprising the nanoparticles in the patient.

The invention discloses an acne-removing composition containing saw palmetto essential oil and a preparation method thereof. The raw materials of the acne-removing composition include 0.05-0.1 parts by weight of saw palmetto essential oil, 0.01-0.05 parts by weight of angelica ferulic acid, kudzu root 0.5-2 parts by weight of isoflavones, 0.5-3 parts by weight of wheat protein extract, 1-10 parts by weight of salicylic acid, 1-5 parts by weight of nicotinamide, 0.5-5 parts by weight of citric acid, 0.1-3 parts by weight of zinc gluconate 0.5-2 parts by weight of aloe vera extract freeze-dried powder, 0.05-1 parts by weight of patchouli essential oil, 0.01-0.1 parts by weight of chamomile essential oil, 0.5-3 parts by weight of allantoin, 0.2-0.5 parts by weight of hyaluronic acid, 0.1-0.5 parts by weight of dipotassium glycyrrhizinate, 1-8 parts by weight of plant antibacterial component combination, and 0.5-1 parts by weight of arbutin. The composition of the present invention aims at all the targets and links of the onset of acne, effectively blocking its pathophysiological process, so as to achieve the triple effects of oil control, acne removal and acne scar repair.

The invention belongs to the field of PD-L1 / PD-1 monoclonal antibody tumor immunotherapy, and provides a new research and development direction of PD-L1 / PD-1 monoclonal antibody tumor immunodetection or immunotherapy adjuvant drugs and a new drug combination mode. Specifically, the invention provides an application of PF543 in preparation of a PD-L1 / PD-1 monoclonal antibody tumor immune adjuvant therapy drug, the tumor is a solid tumor, and the solid tumor is further melanoma.

A carbon / carbon composite multilayer coating and a preparation method thereof. The multi-layer coating is sequentially composed of a SiC bottom layer, a SiC transition layer and alternating ceramic layers / SiC layers on a carbon / carbon composite material substrate. The preparation method of the carbon / carbon composite multilayer coating is that the preparation method of the SiC bottom layer is a brushing method, a spraying method or a magnetron sputtering method. The preparation method of the SiC transition layer and the ceramic layer / SiC layer alternate layer is as follows: the carbon / carbon composite material with the SiC bottom layer is ultrasonically cleaned with acetone and dried; it is cleaned by ion source sputtering; it is prepared by magnetron sputtering Alternating layers of SiC transition layer and ceramic layer / SiC layer. The multi-layer coating prepared by the invention has good oxidation resistance and thermal shock resistance at 1500°C. The preparation method of the invention has the characteristics of controllable thickness, and the prepared coating has good thickness uniformity.

The invention belongs to the field of PD-L1 / PD-1 monoclonal antibody tumor immunotherapy, and aims to provide a new research and development direction of PD-L1 / PD-1 monoclonal antibody tumor immunodetection or immunotherapy adjuvant drugs and a new drug combination mode. Specifically, the invention provides an application of the MTA3 in preparation of a detection kit for a PD-L1 / PD-1 monoclonal antibody tumor immunotherapy drug and an application of the combination of the MTA3 and the PD-L1 / PD-1 monoclonal antibody drug in preparation of a tumor immunotherapy drug, the tumor is a solid tumor, and the solid tumor is further melanoma.

The invention discloses a traditional Chinese medicine for expanding heart and cerebral vessels. The traditional Chinese medicine comprises, by weight, 3-11 parts of ginseng, 4-12 parts of caulis akebiae, 2-10 parts of hawthorn fruits, 7-15 parts of pseudo-ginseng, 15-23 parts of leech powder, 5-20 parts of radix rehmanniae, 3-10 parts of ligusticum wallichii, 3-11 parts of peach kernels, 4-10 parts of salvia miltiorrhiza, 4-18 parts of radix astragali, 3-11 parts of crocus sativus, 4-12 parts of prepared licorice root, 3-15 parts of cassia twigs, 2-10 parts of radix paeoniae rubra and 5-15 parts of radix curcumae. A preparation method of the traditional Chinese medicine includes the following steps that 1, the caulis akebiae, the hawthorn fruits, the pseudo-ginseng, the radix rehmanniae,the ligusticum wallichii, the peach kernels, the radix astragali, the crocus sativus, the prepared licorice root, the cassia twigs, the radix paeoniae rubra and the radix curcumae are weighed according to the ratio and then crushed and grinded, water is added for mixing, and a mixed liquid medicine is prepared. The traditional Chinese medicine can fundamentally treat cardiovascular and cerebrovascular diseases according to the principle of tonifying qi, activating blood and integrating dredging and nourishing and by means of the method that dredging and nourishing supplement each other and areused together, and the preparation method is simple.