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32results about How to "Realize free regulation" patented technology

BeZnOS compound semiconductor material as well as preparation method and application thereof

The invention belongs to the technical field of semiconductor optoelectronic materials, and in particular relates to a BeZnOS compound semiconductor material, its preparation method and application. The BeZnOS material provided by the present invention is a quaternary compound semiconductor material obtained by solid solution of BeO and ZnS in a certain proportion. Through the synergistic effect of compound substitution of Be and S, not only can the bandgap of ZnO be adjusted more freely, but also play a role Increase the solubility of the substituting elements Be and S in ZnO and eliminate the effect of mutual restraint between the band gap of the solid solution and the adjustment of the lattice constant. The BeZnOS quaternary compound is a wide bandgap semiconductor with freely adjustable bandgap, and can be used for light-emitting devices or photodetection devices in ultraviolet to solar blind regions. The BeZnOS compound semiconductor material provided by the invention can be grown by various methods such as pulse laser deposition, magnetron sputtering, electron beam evaporation, etc., and the equipment and operation process are simple. The BeZnOS single crystal thin film material provided by the invention is successfully synthesized for the first time in the world, and has very important significance for the development of ZnO-based optoelectronic devices with adjustable wavelength.
Owner:HUBEI UNIV

Free regulating method and device of diffraction-free self-accelerating Airy beams

The invention discloses a free regulating method of diffraction-free self-accelerating Airy beams. The method includes following steps: 1), emitting Gaussian beams by a laser device, and collimating and expanding the Gaussian beams; 2), projecting the collimated and expanded Gaussian beams onto a splitting mirror for splitting; 3), irradiating the split beams into a spatial light modulator loaded with a phase graph in advance for phase modulation; 4), enabling the beams after going through phase modulation to pass a Fourier lens for Fourier transformation to obtain Airy beams; 5), irradiating the Airy beams into a gradient refractivity medium to enable the Airy beams to be transmitted along free tracks. The invention further relates to a regulating device of the diffraction-free self-accelerating Airy beams.
Owner:ZHEJIANG NORMAL UNIVERSITY

Preparation method for monodisperse porous silicon dioxide ball material

The invention discloses a preparation method for a monodisperse porous silicon dioxide ball material. The preparation method comprises the following steps: (1) dissolving a surfactant and a catalyst into water, and stirring at a high speed to obtain a clear solution; dissolving a silicon source into an organic solvent to obtain an organic solution; adding the organic solution into the clear solution to form an oil-water mixed-phase system; (2) reacting the oil-water mixed-phase system in a temperature being 40-80 DEG C to obtain a monodisperse nanoball; and (3) removing the surfactant in the monodisperse nanoball to obtain the monodisperse porous silicon dioxide ball material. According to the preparation method disclosed by the invention, an oil-water two-phase mixing and dissolving reaction system is adopted, and the pore diameter of the inorganic silicon dioxide silicon ball is as high as 70 nm as a result of the chambering effect of the organic phase. Meanwhile, the pore diameter of the inorganic silicon dioxide silicon ball is controlled, so that the pore diameter can be freely controlled within 15-70 nm.
Owner:元颉新材料科技(浙江)有限公司

Preparation method and application of anti-blue-ray film

The invention discloses a preparation method and application of an anti-blue-ray film. The method comprises the following steps: 1) preparing a composite microsphere having a core-shell structure; and2) carrying out mirror rolling or one-way hot-pressing on the prepared composite microsphere to obtain a function film having an anti-blue-ray effect. The composite microsphere having the core-shellstructure is formed by a core, a transition layer and a shell from the inside out in sequence. The core is made of a spherical material, which is uniform in size, and deviation of which is less than 10%. The size of the spherical material is in a submicron range, and specifically refers to microspheres in 150-200 nm, which has higher reflection for blue rays in 380-420 nm. The beneficial effects are that the method adopts a pure chemical process to endow the film with the characteristics of multiple functions, and especially in the optical property of the thin film, free regulation of the solar spectrum is realized, such as control of visible light and high barrier of near infrared; and the anti-blue-ray film can be widely applied to fields of buildings, cars, ships and electronics and thelike.
Owner:南通纳科达聚氨酯科技有限公司

Preparation method of monodisperse mesoporous silica nano-sheet material

The invention discloses a preparation method of a monodisperse mesoporous silica nano-sheet material. The preparation method comprises the following steps: (1) dissolving a surfactant and a catalyst into water, adding an organic solvent, and adding a silicon source to form a new mixed phase system; (2) reacting the new mixed phase system at a temperature of 10-60 DEG C to obtain a monodisperse mesoporous silica nano-sheet; and (3) removing the surfactant from the monodisperse mesoporous silica nano-sheet.
Owner:深圳元颉新材料科技有限公司

Intelligent puppet stage

InactiveCN105536267AAvoid complex issuesSave stage and human resourcesPuppetsEngineeringDisplay device
The invention discloses an intelligent puppet stage. A displayer is arranged above the rear end of a base, a computer host is arranged in one corner of the base, transverse guide rails are arranged in the base, a sliding module is arranged in each transverse guide rail, a motor is arranged at one end of each transverse guide rail, a puppet is arranged on each sliding module, a motor is arranged at one end of each transverse guide rail and controls the corresponding sliding module and the corresponding puppet to move, and the motors are connected with the computer host through numerical control lines; a support is arranged above the base, and a row of lamps is installed below a cross rod of the support. By transforming a traditional puppet stage intelligently, intelligent service can be provided through control and adjustment of a computer, unlimited control over the puppets, props and plot scenes on the stage can be achieved freely by conducting errorless calculation and analysis on the whole stage, so that errors caused by traditional manual work in actual operation are reduced, and refreshing viewing experience can be brought to audience efficiently with the scientific and intelligent instruction method.
Owner:江苏华博创意产业有限公司

Preparation method for mesoporous silica nano hemisphere material

ActiveCN108439419AIncreased mesopore sizeRealize free regulationSilicaAir atmosphereOrganic solvent
The invention discloses a preparation method for a mesoporous silica nano hemisphere material. The preparation method comprises the following steps: (1) dissolving a surfactant and a catalyst into water, stirring until a clear solution; adding graphene substrate into the clear solution to obtain a black solution; dissolving a silicon source into the organic solvent to obtain an organic solution; adding the organic solution into the black solution to obtain a two-phase layering system; (2) reacting the two-phase layering system at temperature being 40-80 DEG C to obtain a mesoporous hemispheregrown on the graphene substrate; and (3) under air atmosphere, removing the surfactant and the graphene substrate of the mesoporous hemisphere to obtain the mesoporous hemisphere nano material. The preparation method adopts an oil-water two-phase reaction system; as a result of the hole-expanding effect of the organic phase, the mesoporous hole diameter of the obtained hemisphere is increased much; and the hole diameter of the hemisphere is controlled by regulating parameters of the organic phase, so that free control on the hole diameter being 2.5-25 nm is realized.
Owner:元颉新材料科技(浙江)有限公司

Intelligent adjustable operation bed for hair transplantation

The invention discloses an intelligent adjustable operation bed for hair transplantation. The operation bed comprises a base, a lifting pillar and a bed sheet, wherein the base is connected to the bed sheet by the lifting pillar; a bedding layer is disposed on the upper surface of the bed sheet; the bed sheet is successively divided into a head plate, a back plate, a seat plate, a leg plate and a foot plate; the head plate, back plate, seat plate and leg plate are connected by overturning shafts; a slide rail is disposed under the bed sheet; the slide rail is linked up with a pulley on the lifting pillar; a lifting oil cylinder is installed in the lifting pillar; the lifting oil cylinder comprises a baseplate, an inner cylinder body, an outer cylinder body, a piston, an output shaft, a seal cover and a protective cover; and the lifting oil cylinder is connected to a control box. According to the invention, the head plate, back plate, seat plate and leg plate are rotationally connected by the overturning shafts, so the height of a patient's position can be adjusted according to actual demands, and a seat shape can be folded through folding. In this way, the bed sheet can be adjusted at will; an optimum operation position can be provided for medical workers; and the comfort degree is high.
Owner:新生医疗美容集团有限公司

Preparation method of mesoporous silica-carbon composite material

The invention provides a preparation method of a mesoporous silica-carbon composite material. The preparation method comprises steps as follows: (1), a mesoporous silica / surfactant composite materialis dispersed in dilute sulfuric acid, and a mixed system is obtained; (2), the mixed system is dried, and a mesoporous silica-surfactant-sulfuric acid composite material is obtained; a mesoporous silica-oligomeric carbon composite material is obtained by pre-carbonization; (3), calcination is performed, and the mesoporous silica-carbon composite material is obtained. With the adoption of the reaction system of a sulfuric acid carbonized surfactant, sulfuric acid has an effect of carbonizing organic molecules, so that carbon content of the obtained mesoporous silica-carbon composite material isquite high and can be up to 25wt%. Meanwhile, the carbon content can be regulated and controlled by changing sulfuric acid carbonization parameters and is freely regulated and controlled in a range of 5wt%-25wt%.
Owner:深圳元颉新材料科技有限公司

Design movable display stand

The invention discloses a design movable display stand and belongs to the field of commodity display equipment. The design movable display stand comprises arched bases, wherein two groups of arched bases are set; each group comprises two symmetrical arched bases; upper and lower end faces of each arched base are parallel; when four arched bases are folded, the top end faces thereof are exactly spliced into a complete round surface; a universal wheel is mounted at the bottom end of each arched base; inclined notches are set on inner side faces of the two groups of arched bases; drive motors arefixed in the notches on a group of arched bases; a threaded rod is fixed on the top end of each drive motor; an inclination angle of each threaded rod is equal to that of the notch at the corresponding side; and bases are in threaded sleeving on the two threaded rods. According to the design movable display stand, through work of the drive motors, the bases in threaded matching with the threadedrods are driven to lift up and down, and the four arched bases are stretched through up and down lifting of the bases, so the display stand is used flexibly.
Owner:江西环境工程职业学院

Laser ranging system based on low-frequency constant-exponential spectrum chaotic signal source and implementation method thereof

The invention provides a laser ranging system based on a low-frequency constant-exponential spectrum chaotic signal source and an implementation method thereof. A low-frequency constant-Lyapunov exponential spectrum chaotic signal is adopted as a modulation signal, light is adopted as carrier, and laser modulation, demodulation, correlation detection and summation detection are carried out to obtain range information. The laser ranging system comprises the signal source, a summation detection channel, a correlation detection channel, a regulation control mechanism and a discriminant analysis system. The summation detection utilizes the phase inversion control characteristic of the constant-exponential spectrum chaotic system, while the amplitude regulation can obtain signal intensity needed by detection. The outputs of the correlation detection and the summation detection can be independent from each other, and the correlation detection and the summation detection can check each other. The invention also provides the laser ranging implementation method. The laser ranging system has the advantages of high range resolution, dual-channel detection and low cost. Since the low-frequency chaotic signal is utilized, the system can be extended to use other chaotic sources. The laser ranging system belongs to an electronic communication product, and can be widely applied in communication systems, photoelectric detection systems and the Internet of things.
Owner:JIANGSU INST OF ECONOMIC & TRADE TECH

Holmium ferrite-based terahertz metamaterial, preparation method thereof and optical device

ActiveCN111056828AExcellent adjustable characteristicsRegulatory modulabilityOptical elementsDielectricHolmium
The invention discloses a holmium ferrite-based terahertz metamaterial, a preparation method thereof and an optical device. The preparation method of the holmium ferrite-based terahertz metamaterial comprises the following steps: (1) weighing iron oxide and holmium oxide according to a stoichiometric ratio, mixing to form a raw material mixture, and then carrying out first sintering to form a holmium ferrite-based material; and (2) molding the holmium ferrite-based material. Iron oxide and holmium oxide are used as raw materials to prepare the all-dielectric-based metamaterial with the adjustable ratio of Ho atoms to Fe atoms, the amplitude and frequency of the terahertz metamaterial can be flexibly regulated, and meanwhile the problem of large absorption loss of electromagnetic waves, caused by precious metal metamaterials used in the prior art, is solved.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Functional micro-spiral and preparation method therefor

ActiveCN110437357AUniform shapeSolve the problem of poor shape control abilityFibre chemical featuresMicroballoon preparationChemistryWater-in-water emulsion
The invention provides a preparation method for a functional micro-spiral. The method comprises the following steps: (1) injecting internal-phase, intermediate-phase and stable-phase fluids into a microfluid device, forming a monodisperse oil-in-water or water-in-water emulsion in a transition tube, enabling the monodisperse oil-in-water or water-in-water emulsion to enter a conversion tube, changing the stable-phase fluid into external-phase fluid after flowing is stable, cross-linking sodium alginate in the emulsion and calcium chloride in the external-phase fluid to form calcium alginate fibers, subjecting the calcium alginate fibers to spontaneous spiralization in the conversion tube to form spiral fibers, and subjecting oil cores or water cores of the spiral fibers to stretching at aconical outlet of the conversion tube and spiralization due to restriction of calcium alginate shells of the spiral fibers, so as to form a liquid droplet micro-spiral template; and (2) initiating polymerization of macromolecular monomers in the liquid droplet micro-spiral template to form a calcium alginate shell encapsulated functional micro-spiral, carrying out dissolving to remove a calcium alginate shell, so as to release the functional micro-spiral. According to the method, the continuous controllable preparation of the functional micro-spiral is achieved, and micro-spirals with diversified functions can be prepared.
Owner:SICHUAN UNIV

Air conditioner temperature locking module

The invention discloses an air conditioner temperature locking module. The air conditioner temperature locking module comprises a temperature locking module body, the temperature locking module body is fixedly installed on an air conditioner indoor unit, and the temperature locking module body comprises an infrared receiver and a single-chip microcomputer; the infrared receiver is in linear connection with the single-chip microcomputer; the single-chip microcomputer is in linear connection with an air conditioner controller; signals are received through the infrared receiver and transmitted to the single-chip microcomputer; and the single-chip microcomputer serves as a main control module to control locking of the temperature of an air conditioner, so that the temperature of the air conditioner cannot exceed the locking temperature set by the temperature locking module body. The temperature locking module body is used for replacing an original remote control connector of the air conditioner; on the basis that original control information transmission is achieved, the air conditioner can normally operate at the limited temperature, the temperature cannot exceed or be lower than the locking temperature set by the temperature locking module body; and thus, resource waste is avoided, the failure rate of the air conditioner is effectively reduced, and the maintenance cost for later-stage damage of the air conditioner is reduced.
Owner:杨开明

Preparation method of monodisperse porous silica sphere material

The invention proposes a preparation method of a monodisperse porous silica sphere material. The preparation method comprises the steps: (1) dissolving a surfactant and a catalyst in water, performingstirring at high speed until clearness of a solution, dissolving a silicon source in an organic solvent so as to obtain an organic solution, and adding the organic solution to the clear solution so as to form an oil-water mixed-phase system; (2) performing a reaction on the oil-water mixed-phase system at a temperature of 40-80 DEG C so as to obtain monodispersed nanospheres; and (3) removing thesurfactant in the monodispersed nanospheres so as to obtain the monodisperse porous silica sphere material. The oil-water two-phase miscible reaction system is adopted, the highest pore diameter of the obtained inorganic silica spheres can reach 70 nm due to the pore-expanding effect of an organic phase, and meanwhile, the pore diameter of the inorganic silica spheres can be regulated, so that the pore diameter of the inorganic silica spheres is regulated freely within a range of 15-70 nm.
Owner:元颉新材料科技(浙江)有限公司

Multifunctional colorful anti-counterfeiting film preparation method based on rotation parameter control

The invention discloses a multifunctional colorful anti-counterfeiting film preparation method based on rotation parameter control, and relates to the field of film materials and optical anti-counterfeiting. The prepared film comprises an interference dielectric layer, a substrate layer compounded at the bottom of the interference dielectric layer, and a surface film layer compounded at the top of the interference dielectric layer, wherein the substrate layer comprises a base material layer and a carrier layer, and the base material layer is attached to the carrier layer; the surface film layer comprises a functional layer compounded on the top of the interference dielectric layer and a protective layer compounded on the top of the functional layer. By changing the traditional magnetron sputtering preparation process and controlling the period and angle of a turntable during sputtering, the traditional process is changed, the conventional solid-state chip type anti-counterfeiting design is broken through, and the appearance expressive force of the identification is improved; and the sub-wavelength-magnitude thickness also enables the design and application scenarios of the identifier to be more flexible.
Owner:BEIJING UNIV OF TECH

Monodisperse mesoporous silica composite zeolite core-shell material and preparation method thereof

The invention belongs to the technical field of zeolite molecular sieve catalysts, and particularly relates to a monodisperse mesoporous silica composite zeolite core-shell material and a preparation method thereof. The composite material is characterized in that zeolite crystal grains serving as a core and a silicon dioxide layer constructed on the outer surfaces of the zeolite crystal grains by utilizing an oil-water two-phase layered interface assembly method and has divergent mesoporous channels form a multi-stage grading hole zeolite material with a core-shell structure, the multi-stage grading hole zeolite material comprises inner core zeolite micropores, shell layer mesopores and bulk gap accumulation holes, four quantity levels are reached, the shell layer pore channels are a radially developed gradient mesoporous pore channels, and the material still ensures the high crystal phase and strong acidity of the original zeolite crystal grains. According to the invention, a brand-new synthesis strategy, namely an oil-water two-phase interface assembly method, is adopted, organic amine is adopted for catalytic synthesis, stone grains are prevented from being etched and decomposed in the coating process, the high crystalline phase and strong acidity of original zeolite grains are reserved, and the composite material has quite high applicability when being used as a catalyst for macromolecular catalysis or multi-stage series catalytic reaction.
Owner:FUDAN UNIV

Functional microhelix and preparation method thereof

ActiveCN110437357BUniform shapeSolve the problem of poor shape control abilityFibre chemical featuresMicroballoon preparationFiberCalcium alginate
The invention provides a preparation method for a functional micro-spiral. The method comprises the following steps: (1) injecting internal-phase, intermediate-phase and stable-phase fluids into a microfluid device, forming a monodisperse oil-in-water or water-in-water emulsion in a transition tube, enabling the monodisperse oil-in-water or water-in-water emulsion to enter a conversion tube, changing the stable-phase fluid into external-phase fluid after flowing is stable, cross-linking sodium alginate in the emulsion and calcium chloride in the external-phase fluid to form calcium alginate fibers, subjecting the calcium alginate fibers to spontaneous spiralization in the conversion tube to form spiral fibers, and subjecting oil cores or water cores of the spiral fibers to stretching at aconical outlet of the conversion tube and spiralization due to restriction of calcium alginate shells of the spiral fibers, so as to form a liquid droplet micro-spiral template; and (2) initiating polymerization of macromolecular monomers in the liquid droplet micro-spiral template to form a calcium alginate shell encapsulated functional micro-spiral, carrying out dissolving to remove a calcium alginate shell, so as to release the functional micro-spiral. According to the method, the continuous controllable preparation of the functional micro-spiral is achieved, and micro-spirals with diversified functions can be prepared.
Owner:四川迈可隆生物科技有限公司

A continuous annealing device for thermochromic coating materials on sheet substrates

ActiveCN104004888BReduce stress lossComply with glass safety performance requirementsFurnace typesHeat treatment furnacesRoom temperatureContinuous annealing
The invention discloses a continuous annealing device for thermochromic coating materials on sheet-like substrates, which includes a working platform, which is provided with a feeding area, a working area and a feeding area; and also includes a transmission mechanism, which passes through the The entire feeding area, working area and unloading area; in the working area, a heat treatment chamber and several vacuum chambers are arranged on the working platform; the heat treatment chamber is arranged between the vacuum chambers and separated from the vacuum chamber by a sealing device ; The heat treatment chamber includes a working cavity, the working cavity is a double-layer structure, including an inner cavity and an outer wall, a cooling interlayer for flowing coolant is provided between the inner cavity and the outer wall, and the inner surface of the inner cavity is coated with a heat-absorbing coating layer; the heat treatment chamber communicates with the vacuum pump group. The invention can process workpieces of different sizes at the same time, and the temperature in the device can be freely adjusted from room temperature to 700°C, greatly shortening the production time of annealing to meet the needs of mass production.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

A design mobile display stand

The invention discloses a design movable display stand and belongs to the field of commodity display equipment. The design movable display stand comprises arched bases, wherein two groups of arched bases are set; each group comprises two symmetrical arched bases; upper and lower end faces of each arched base are parallel; when four arched bases are folded, the top end faces thereof are exactly spliced into a complete round surface; a universal wheel is mounted at the bottom end of each arched base; inclined notches are set on inner side faces of the two groups of arched bases; drive motors arefixed in the notches on a group of arched bases; a threaded rod is fixed on the top end of each drive motor; an inclination angle of each threaded rod is equal to that of the notch at the corresponding side; and bases are in threaded sleeving on the two threaded rods. According to the design movable display stand, through work of the drive motors, the bases in threaded matching with the threadedrods are driven to lift up and down, and the four arched bases are stretched through up and down lifting of the bases, so the display stand is used flexibly.
Owner:江西环境工程职业学院

A method for mid-infrared band stealth using metasurfaces

The invention relates to the method for adopting metastructure surface to realize intermediate infrared invisibility. The method comprises steps of adopting a metastructure flat material surface, performing regulation and control on the amplitude and the phase on the incident light in order to control the information carried by the outgoing information so as to realize the invisibility of a two-dimension transparent object in a specific position, utilizing an existing optical simulation program to calculate the light field amplitude distribution of the position where the flat material is positioned according to the given two-dimension transparent object transmittance rate function and device positions, linearity information of a nanometer antenna and parameter information of an optical system which is practically constructed, and performing arrangement on the antenna array on the surface of the material according to the obtained complex amplitude distribution information in order to achieve the visibility effect. Compared with the traditional optical invisibility method, the invention is simple and fast and is low in complexity of manufacturing the device.
Owner:NANJING UNIV

Process for producing epoxy chloropropane through direct oxidization with titanium silicalite molecular sieve catalyst

The invention provides a process for producing epoxy chloropropane through direct oxidation with a titanium silicalite molecular sieve catalyst. The method comprises the following steps: pumping a prepared methanol catalyst mixed solution and fresh chloropropene into a first mixer through a metering pump; mixing with hydrogen peroxide pumped into the first mixer, and carrying out a reaction in a first tubular reactor; performing gas-liquid two-phase separation on a reaction product through a separator; mixing the separated liquid phase part with hydrogen peroxide sent to a second mixer and then feeding the mixture into a second tubular reactor for reaction; feeding a reaction product into a second separator for gas-liquid separation, and sending a final reaction product into a separation tank to separate a solid catalyst and a liquid-phase product, pumping the catalyst slurry back into a blending tank to be blended again, and withdrawing a liquid product from a filter at the upper partof the separation tank.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Tan-based Josephson junction and preparation method thereof

The invention provides a TaN-based Josephson junction and a preparation method thereof. The preparation method includes: providing a substrate, forming an NbN bottom layer film, a metal TaN barrier layer, and an NbN top layer film, etching to define a bottom electrode and a junction region, and forming an isolation layers and wiring layers. The invention forms a metal TaN barrier layer through an ion nitriding process to obtain a Josephson junction of SNS structure, which can improve the stability of the resistivity of the barrier layer without parallel resistors, and solves the problems of SIS Josephson junction magnetic flux noise and integration , improve the repeatability and stability of the process, the resistivity and thickness of the barrier layer material can be freely adjusted by parameters such as ion nitriding time and power, effectively avoiding the formation of an insulating layer at the S / N interface, and the surface smoothness is high And the nitriding uniformity is good, which improves the characteristic voltage I of the SNS junction c R n Small defects that limit the high-frequency application of devices are conducive to the development of high-quality NbN SNS Josephson junctions.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Mouth-to-mouth intelligent MT multi-mode automatically-overturning water-adding tea-making tea bar machine and method

The invention relates to the field of household appliances and tea sets, in particular to a mouth-to-mouth intelligent MT multi-mode automatically-overturning water-adding tea-making tea bar machine and method. The method comprises the following steps that a weight sensor (11) is a tea-making pot weight sensor, and the tea-making pot weight sensor can acquire the weight of water by subtracting theweight of tea and the initial weight of the tea-making pot from a sensed weight; the volume of water in the tea-making pot can be known through the weight of the water, and then the available residual volume of the tea-making pot can be known; namely, whether side pouring water overflows or not can be known; the weight of the tea-making pot and the weight of a tea kettle are continuously obtained, and the volumes of water in the tea-making pot and the tea kettle are monitored at any time; meanwhile, whether water in the tea-making pot is too little or not can be known according to the volumeof the water in the tea-making pot. With the machine and the method in the invention, people do not need to pour water, the amount of water in the kettle (20) and the tea-making pot (19) is automatically adjusted, and free adjustment and control are achieved.
Owner:程恩串
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