51results about How to "Strong refraction" patented technology

The invention provides a zoom lens system which achieves a wide angle of field, has a simplified construction, and is suitable for use on video cameras. The zoom lens system comprises, in order from an object side thereof, a first lens group G1 having positive refracting power, a second lens group G2 having negative refracting power, a third lens group G3 having positive refracting power, and a fourth lens group G4 having positive refracting power. The second lens group G2 moves toward an image side thereof while the third G3 and fourth G4 lens groups move constantly toward the object side for zooming from a wide-angle end thereof to a telephoto end thereof. The first lens group G1 consists only of a positive single lens.

Two monoclonal antibodies B and C for the lymphocystics virus of bastard halibut are prepared from two hybrid tumor cells (CCTCC-C200419 and CCTCC-C200420) through conventional culture for 2-3 days to secrete a lot of said monoclonal antibodies B and C.

This invention discloses monoclonal antibody against anti-LCDV immunoglobulin of Paralichthys olivaceus, which is excreted by hybridoma JF-lgM-H (CCTCC-C200631). The method comprises: immunizing Paralichthys olivaceus with LCDV inactivated by formalin to prepare antiserum, purifying Paralichthys olivaceus immunoglobulin, immunizing Balb / c mice as antigen, preparing hybridoma cells by cell engineering method, and screening the monoclonal antibody by immunoassay. Indirect ELISA and indirect immunofluorescent antibody assay show that this monoclonal antibody is located on the heavy chain (7-80 kDa) of the anti-LCDV immunoglobulin. The monoclonal antibody can be used for preparing reagents for detecting LCDV infection in early stage, and evaluating the immune effects of LCDV vaccine inactivated by formalin.

The invention discloses a novel method for obtaining goat-induced multi-potent stem cells. The novel method comprises the following steps: firstly, extracting total RNAs from a testicular tissue, a skin tissue and a small intestine tissue of a goat; performing reverse transcription to obtain a cDNA segment; and with the cDNA segment as a template, cloning to obtain coding sequences of Oct4, Sox2, K1f4 and c-Myc multifunctional transcription factors of the goat. Fetal fibroblast cells of the goat and a mouse are obtained by utilizing a trypsin digestion method, feed-layer cells and a cell culture solution are prepared. mRNA of each multifunctional transcription factor obtained by utilizing an in-vitro transcription test is mediated by lipidosome 2000 to transfect the goat fetal fibroblast cells, so that goat iPS cells are prepared. A cell colony which is flatly cloned, dense, large in nuclear-cytoplasmic ratio, clear in cloning boundary and strong in light refraction is judged as a goat iPS cell colony. The goat iPS cell colony is picked in a monoclonal mode, digested by pancreatic enzyme and independently inoculated to a novel culture pore plate inoculated with a feeding layer to be further cultured to obtain a goat iPS cell line.

The invention discloses a method for culturing primary hippocampal neurons, wherein the method comprises the following steps: (1) digesting a hippocampal tissue; (2) blowing and dispersing the digested hippocampal tissue so as to obtain a cell suspension; (3) inoculating the cell suspension and culturing the hippocampal tissue for the first time for 2-4h so as to promote cell attachment; (4) changing a first culture solution inside a culture dish with a second culture solution, and culturing for the second time for 24h; (5) adding 1-2ug / ml of cytarabine to the culture dish and culturing for the third time for 24h; and (6) changing half volume of solution inside the culture dish by virtue of the second culture solution, culturing for the fourth time for at least 3 days and meanwhile changing half volume of solution twice every week so as to obtain the primary hippocampal neurons. By virtue of the method, primary hippocampal neurons can be rapidly and efficiently prepared and acquired; and the acquired primary hippocampal neurons are quite suitable to act as a cell model in a patch clamp experiment.

The invention discloses a monoclonal antibody capable of resisting a surface marker molecule CD4-2 of a T cell of paralichthys olivaceus. The monoclonal antibody is secreted by a hybridoma cell whichis named by hybridoma cell JF-CD4-2-1D8 and collected in the China Center for Type Culture Collection, with the collection number of CCTCC NO: C201880, in Wuhan University in Wuhan, Hubei, on March 29. 2018. An experimental result of indirect enzyme-linked immunosorbent assay of the monoclonal antibody shows that the monoclonal antibody can be specifically combined with CD4-2 polypeptide; an immunoblotting result shows that the monoclonal antibody disclosed by the invention can specifically identify the paralichthys olivaceus CD4-2 recombinant protein with the molecular weight of 25kDa and theparalichthys olivaceus natural CD4-2 protein with the molecular weight of about 33 kDa; indirect immunofluorence and flow cytometry show that the monoclonal antibody can specifically identify CD4-2 molecules on the surface of lymphocyte of the paralichthys olivaceus. As the monoclonal antibody capable of resisting the surface marker molecule CD4-2 of the T cell of the paralichthys olivaceus, an important tool is provided for detection of paralichthys olivaceus CD4-2+T lymphocyte; the monoclonal antibody has an important practical significance for deep understanding of immunologic mechanisms of fish cells and development of an efficient and environment-friendly fish vaccine.

A preparation method of a novel alcohol ether environment friendly fuel includes the following steps: 1) purchasing the following raw materials, according to mass part, aromatic hydrocarbon, methylbenzene, methanol, tert-butanol, isobutanol, isopropanol, benzyl alcohol, ethanol, petroleum ether, ethyl ether, isopropyl ether, isooctane, dimethoxymethane, 3-dihydroxybutane, octane, diethyl carbonate, ethyl 2-ethyldioxyacetate, dibutyl phosphite, ethyl acetate, ethyl-propyl ketone, 501 antioxidant, a di-tert-butyl compound and a corrosion inhibitor; 2) mixing the methanol, the tert-butanol, the isobutanol, the isopropanol, the benzyl alcohol and the ethanol to obtain a mixture (A); 3) mixing the petroleum ether, the ethyl ether, the isopropyl ether, the isooctane, the dimethoxymethane, the 3-dihydroxybutane and the octane to obtain a mixture (B); 4) mixing the diethyl carbonate, the ethyl 2-ethyldioxyacetate, the dibutyl phosphite, the ethyl acetate, the ethyl-propyl ketone, the 501 antioxidant, the di-tert-butyl compound and the corrosion inhibitor to obtain a mixture (C); 5) mixing the mixtures (A) and (B) with aromatic hydrocarbon and the methylbenzene to obtain a mixture (D); and 6) uniformly mixing the mixtures (C) and (D) to prepare the fuel.

The invention relates to a lead-free porcelain imitation glass wine bottle and a manufacture process thereof. The lead-free porcelain imitation glass wine bottle comprises the following materials in parts by weight: 45-50 parts of quartz sand, 10-12 parts of calcined soda, 10-11 parts of calcite, 5-8 parts of ultrafine talcum powder, 2-4 parts of magnesium chloride, 2-3 parts of clarifying agent, 4-6 parts of opacifying agent, 1-2 parts of curing agent and 1-2 parts of coupling agent. The lead-free porcelain imitation glass wine bottle provided by the invention is high-temperature resistant, white, safe, nontoxic, light-permeable, environment-friendly and energy-saving, has high refractivity, uniform texture and low cost, and can be recycled.

The invention discloses a monoclonal antibody for a paralichthys olivaceus resistant T cell surface marker molecule CD4-1. The monoclonal antibody is named as a hybridoma cell JF-CD4-1-2A10, the preservation number is CCTCC NO: C201879, the preservation organization is China Center For Type Culture Collection, the address is Wuhan university of Wuhan city in Hubei province, and the preservation date is March 29th, 2018, and is secreted by the hybridoma cell. An indirect enzyme-linked immunosorbent assay reaction experiment on the monoclonal antibody shows that the monoclonal antibody can be specially combined with paralichthys olivaceus CD4-1 polypeptide, indirect immune fluorescence and flow cytometry prove that the monoclonal antibody can specially identify the paralichthys olivaceus lymphatic cell surface CD4-1 molecule, and an immunoblotting result shows that the monoclonal antibody disclosed by the invention can specially identify paralichthys olivaceus CD4-1 recombinant protein and natural paralichthys olivaceus CD4-1 protein of which the molecular weight is 52 kDa. According to the monoclonal antibody disclosed by the invention, the monoclonal antibody for the paralichthys olivaceus resistant T cell surface marker molecule CD4-1 is prepared, and an important tool is provided for detecting paralichthys olivaceus CD4-1<+T> lymphatic cells.

The invention discloses an anti-paralichthys olivaceus immunoglobulin D monoclonal antibody. The anti-paralichthys olivaceus immunoglobulin D monoclonal antibody is secreted by hybridoma cells of a hybridoma cell strain JF-IgD, with the collection No.: CCTCCNO: C2014159, the collection unit: China Center for Type Culture Collection, the collection address: Wuhan University in Wuhan, Hubei of China, and the collection date: September 2, 2014. Indirect enzyme-linked immune reaction experiment results show that the anti-paralichthys olivaceus immunoglobulin D monoclonal antibody can be specifically bound with recombinant flounder IgD heavy chain proteins; immunoblotting results show that the anti-paralichthys olivaceus immunoglobulin D monoclonal antibody can specifically recognize recombinant protein encoded by flounder IgD heavy chain genes delta1-delta 4 and flounder natural IgD heavy chain proteins with the molecular weight of 120kDa. The anti-paralichthys olivaceus IgD monoclonal antibody is prepared, and an important tool is provided for detecting flounder IgD protein molecules and IgD surface positive (IgD +) lymphocytes.

The invention relates to the technical field of PC materials, in particular to a PC material with high light transmittance and high haze and application of the PC material. The PC material includes the following raw materials: in parts by weight, 100 parts of PC, 2-6 parts of a special light diffusant, 0.5-1 part of an antioxidant, 0.4-0.6 part of a light stabilizer and 0.4-0.6 part of an ultraviolet absorbent. The refractive index of polyacrylonitrile which is obtained through co-polymerization of acrylonitrile and methyl acrylate is about 1.4, and therefore polymethyl methacrylate also has acertain light diffusion effect through second refraction; since nano silica as a core is adopted as the inorganic light diffusant, a high refraction effect is achieved, and therefore the haze of thePC material is improved significantly; and moreover, through the three-layer structure of nano-silica, polymethyl methacrylate and polyacrylonitrile, the use amount of nano silica is reduced, and thusthe effect on the light transmittance of the PC material is small.

The present invention has an object to solve the problem in viewing angle characteristics. A display device of the present invention includes: a light shielding film (34) including a plurality of fixed apertures (36), each allowing passage of light; a lens (44) arranged above the plurality of fixed apertures (36); a plurality of shutters (14), which are arranged between the light shielding film (34) and the lens (44) and correspond to the plurality of fixed apertures (36), respectively, for controlling passage and blocking of the light; and a drive portion (40) for driving each of the plurality of shutters (14) to move between a position above each of the plurality of fixed apertures (36) and a position retracted from each of the plurality of fixed apertures (36). The plurality of fixed apertures (36) each have an elongated shape including a long-side direction (Y) and a short-side direction (X). The lens (44) has a light refractive power that is larger in the short-side direction (X) than in the long-side direction (Y).

Two monoclonal antibodies B and C for the lymphocystics virus of bastard halibut are prepared from two hybrid tumor cells (CCTCC-C200419 and CCTCC-C200420) through conventional culture for 2-3 days to secrete a lot of said monoclonal antibodies B and C.

The invention relates to the technical field of building waterproof coatings, and particularly discloses a metal roof acrylic acid high-elastic waterproof coating and a preparation method thereof. The coating is prepared from the following components in parts by weight: 55 to 75 parts of pure acrylic acid emulsion, 5 to 15 parts of titanium dioxide, 15 to 25 parts of talcum powder, 15 to 25 parts of ground calcium carbonate, 1 to 2 parts of a dispersing agent, 0.5 to 1 part of a defoaming agent, 0.2 to 0.4 part of a bactericidal mildew preventive, 1.5 to 3 parts of a coalescing agent, 0.5 to 0.8 part of a thickening agent, 10 to 20 parts of deionized water, 0.6 to 1 part of ethylene glycol and 7 to 12 parts of heat insulation filler; wherein the heat insulation filler is a titanium dioxide / ethyl cellulose composite porous microsphere material. The acrylic acid high-elastic waterproof coating for the metal roof has better light reflection capacity and heat insulation capacity and has better water resistance, adhesiveness, extensibility and elastoplasticity.

The invention discloses an ultra-wideband low-RCS plasma antenna based on a reconstruction structure, and the antenna comprises a high-frequency band antenna, an on-off switch, and a plasma antenna which is located above the high-frequency band antenna, has a working frequency band of an adjustable and controllable antenna, and has a low-RCS characteristic. The on-off switch is connected between the high-frequency band antenna and the plasma antenna. The plasma antenna comprises a chassis and a plasma grid array, wherein the plasma grid array is assembled above the chassis, and the plasma grid array is electrically connected with the high-frequency band antenna through the on-off switch. The antenna has the advantages of good invisibility, high dynamic adjustability and low mutual coupling effect.

The invention discloses a production process of elastic burnt-out imitated-silk crepe fabrics, and belongs to the field of spinning. The production process includes the steps of weaving, dyeing, burnt-out printing, setting and preshrinking. The blending of rayon and real silk is used as warp, the blending of rayon, real silk and spandex is used as weft yarn, and the warp and the weft yarn are interweaved to obtain the crepe fabrics. The production process of elastic burnt-out imitated-silk crepe fabrics has the advantages of being simple in process, low in cost and convenient to achieve, and made products solve the problems that silk fabrics are easy to produce static electricity and has poor hygroscopicity. The blending of rayon, real silk and spandex has a realistic effect of imitated silk fabrics and meanwhile greatly improves the types and stereoscopic impression of the imitated silk fabrics.

The invention discloses a simple, highly-efficient and mechanized inducing method for differentiation of human pluripotent stem cells into retinal tissues. The inducing method comprises the followingsteps: digesting hPSCs so as to obtain cell pellets, then culturing the cell pellets so as to obtain embryoid bodies, and inducing the embryoid bodies for differentiation so as to obtain 3D retinal tissues. The inducing method is characterized in that the hPSCs are digested to obtain the cell pellets which are cultured to obtain the embryoid bodies, that is, the hPSCs are digested into single cells which are collected to be added into a culture container for cell reaggregation to form the embryoid bodies. The inducing method provided by the invention can enable induced differentiation and acquisition of the retinal tissues to realize pipeline operation, and can realize industrialized production for application in large-scale clinical application or drug screening.

The invention relates to the field of medical apparatus and instruments, and especially relates to high-intensity focused ultrasound-puncture ablation fusion therapy equipment. The therapy equipment includes a focused ultrasound transmitter capable of emitting focused ultrasound; and an image guiding device for displaying the focus and surrounding body tissue of patients and a set of puncture ablation assemblies are integrally arranged on the focused ultrasound transmitter. Thus, the defects in the prior art that are hardly overcome during the independent using of focused ultrasound and radiofrequency ablation can be overcome; through the fusion of focused ultrasound and radiofrequency ablation, mutual complement functions can be achieved, so that treatment quality can be guaranteed whiletreatment time is shortened; the therapy equipment is accurate and conformal, and can perfectly protect normal tissue and expand treatment indications while thorough treatment is guaranteed; and a novel method of thorough, fast, safe and minimally invasive treatment can be provided for tumor patients of which diseases are hard to treat or even cannot be treated.

The invention discloses a gold and silver powder tablecloth. The gold and silver powder tablecloth comprises a PVC layer, the thickness of the PVC layer is 0.10 mm-0.18 mm, the PVC layer is coated with gold and silver powder, printed with patterns, and subjected to rolling to obtain the gold and silver powder tablecloth. The manufactured gold and silver tablecloth integrates coating and printing,is good in ventilating effect, high in surface brightness, rich in color, high in third dimension of the pattern and layering sensation, good in refraction effect, capable of comprehensively isolatingliquid of juice, wine and beverages, and more environmentally friendly.

The present invention relates to an anti-UV flash fabric including a lower cotton cloth layer (1), a wool layer (2) and an upper cotton cloth layer (3), a base layer (6) is compounded under the lower cotton cloth layer (1), the surface of the upper cotton cloth layer (3) is covered with an anti-static layer (4), the anti-static layer (4) is made from core-spun yarn fiber, the core-spun yarn fiber comprises a yarn (4.1) and a metal wire (4.2), and the surface of the anti-static layer (4) is provided with an anti-UV layer (5). The base layer is made of a fabric, the fabric is interwoven by warp yarns and weft yarns, and cross-sections of the warp yarns and the weft yarns are triangular. The anti-UV flash fabric can be ultraviolet-proof, has anti-static and anti-radiation functions, and can flash.

The invention discloses a pleuromutilin derivative containing a 1, 2, 4-triazole acrylamide side chain as well as a preparation method and application of the pleuromutilin derivative, and belongs to the field of medical chemistry. According to the compound, pleuromutilin and different substituted acrylic acid are used as raw materials, 3-sulfydryl-1, 2, 4-triazole is used as a connector under the action of a catalyst, and the pleuromutilin derivative which is not reported, has the activity of resisting drug-resistant bacteria and contains a 1, 2, 4-triazole acrylamide side chain is synthesized. The synthesis method is high in operation safety, mild in reaction condition and suitable for industrial production. Preliminary biological activity tests and safety evaluation show that the pleuromutilin derivative containing the 1, 2, 4-triazole acrylamide side chain and having the drug-resistant bacterium resisting activity has good drug-resistant bacterium resisting activity and safety, so that the pleuromutilin derivative can be applied to treatment of infectious diseases, especially infectious diseases caused by drug-resistant bacteria, and has good application prospects. The medicine development value is very good.

The invention discloses a cage inlaid intelligent jewel which comprises a base, wherein the base is internally provided with a label chip; the base is provided with a metal ring; the two ends of the metal ring are connected by a metal support group; the label chip is connected with the metal ring through a lead wire; a first jewel monomer is arranged in the middle of the upper end face of the base; four second jewel monomers are arranged at the circumference of the first jewel monomer and are circular; third jewel monomers are arranged in splicing seams formed between any two adjacent second jewel monomers; fourth jewel monomers are further arranged between any two adjacent second jewel monomers; the fourth jewel monomers are inlaid between the second jewel monomers in a pressing manner; an outer ring of the base is further sleeved with a metal cage; an opening is formed at the upper part of the metal cage; and the diameter of the opening is greater than the maximum outside diameter ofan improved combination jewel. The label chip is inlaid into the jewel; various information of the jewel can be stored in the label chip; and long-term storage of the information is facilitated.

The invention is the monoclonal antibody of flounder against lymphocyst virus (LCDV) immunoglobulin. It is secreted by the hybridoma cell named as hybridoma cell JF-IgM-H, and the preservation number is CCTCC-C200631. The preparation method of the monoclonal antibody is as follows: prepare antiserum by immunizing flounder with formalin-inactivated LCDV, then purify the flounder immunoglobulin as an antigen and immunize Balb / c mice, and use cell engineering to generate fusion hybrid Tumor cells, the monoclonal antibody was screened out by immunological detection method. Indirect enzyme-linked immunosorbent method and indirect immunofluorescence antibody method comprehensively determine: the specific binding reaction between the monoclonal antibody of the present invention and the flounder anti-LCDV immunoglobulin really exists; transfer immunoblotting method determines: the epitope of the monoclonal antibody of the present invention is located at the molecular weight On the heavy chain of the flounder anti-LCDV immunoglobulin in the range 70-80 kDa. The invention will be used in the preparation of reagents for early detection and judgment of LCDV infection in flounder and evaluation of the immune effect of LCDV formalin inactivated vaccine on flounder.

The invention relates to a shiny fabric cashmere sweater convenient to wear. The shiny fabric cashmere sweater convenient to wear comprises a sweater body (1), wherein sleeves of the sweater body are made of a fabric; a left collar body and a right collar body which form a collar (2) of the sweater body (1) are connected through a buckle; the sweater body (1) is further provided with pockets (6); thickening strips are arranged at the collar (2) and top flies (3) of the sweater body (1); strip-type protrusions are vertically arranged on a lower hem (4) of the sweater body (1); decorative buttons (5) are arranged on one top fly (3) of the sweater body (1); the fabric is formed by interweaving warp yarns and weft yarns, and the cross sections of the warp yarns and the cross sections of the weft yarns are all triangular. The cashmere sweater has the advantage of being convenient to wear. The adopted fabric is shiny.

The invention discloses a method for cultivating primary hippocampal neurons. The method comprises: (1) digesting the hippocampal tissue; (2) blowing and dispersing the digested hippocampal tissue to obtain a cell suspension; (3) The cell suspension is inoculated and first cultivated for 2-4 hours to make the cells adhere to the wall; (4) the first culture solution in the culture dish is replaced with the second culture solution, and the second culture is carried out for 24 hours; (5) to Add 1-2 μg / ml of cytarabine to the culture dish, and carry out the third culture for 24 hours; (6) Use the second culture medium to replace half of the medium of the culture dish, and carry out the fourth culture for at least 3 days, during which every The medium was changed twice a week to obtain primary hippocampal neurons. The method can be used to quickly and efficiently prepare primary hippocampal neurons, and the obtained primary hippocampal neurons are extremely suitable for use as cell models for patch clamp experiments.

The invention relates to a method for separating and purifying oligodendrocyte precursor cells of the cerebral cortex of tupaia belangeri in vitro, and belongs to the technical field of cell separation and purification. According to the method, trypsin and DNase I are combined to digest the cerebral cortex, and the OPCs of tupaia belangeri are well separated and purified by conducting differentialadherence purification twice. The method is simple in operation step, has the advantages of being quick in cell adherence, high in survival rate and the like, has the extremely high cell purity in asubsequent identification experiment and the high reliability of an identification result, can meet the requirements for relevant experimental research on tupaia belangeri in various research fields of medicine, biology, pharmacy and life science, and is suitable for application and popularization in general laboratories.

The invention discloses a holographic anti-blue-ray thin film and a making method thereof. The method comprises the following steps of S10, selecting a recording medium and recording light source of optical responses, and making a volume hologram; S20, calculating a Bragg reflection angle according to Bragg conditions and reproduction characteristics of the volume hologram; S30, making the reflective holographic anti-blue-ray thin film according to the Bragg reflection angle obtained in S20. The holographic anti-blue-ray thin film and the making method thereof have the advantages that the holographic anti-blue-ray thin film is simple to make and low in making cost, harmful short-wave blue rays can be effectively reflected, and meanwhile, the situation is avoided that the color of an object is distorted because beneficial long-wave blue rays are reflected, so that the holographic anti-blue-ray thin film helps people to use their eyes healthily.

The invention relates to an elegant pocketed women's cashmere sweater made of flickering fabric. The elegant pocketed women's cashmere sweater comprises a sweater body (1), the sweater piece of the sweater body is made of cashmere, sleeves are made of fabric, a thickening strip is vertically arranged in the front middle of the sweater body (1), decorative buttons (4) are arranged on the thickening strip, a pocket (5) is arranged on the sweater body (1), a thickening strip is arranged at the position of a collar (2) of the sweater body (1), annular thickening strips are arranged at the positions of sleeve openings of the sweater body (1), and stripped protrusions are vertically arranged at a lower hem (3) of the sweater body (1); the fabric includes woven fabric and knitted fabric, and the woven fabric and the knitted fabric are bonded together through binding agents. The elegant pocketed women's cashmere sweater is elegant, and the flickering fabric is adopted.

The invention relates to a cashmere sweater high in wearing layering and glossiness. The cashmere sweater comprises a clothes body (1), and the front and sleeves of the clothes body are made of cashmere. A collar of the clothes body (1) is a V-shaped collar (2) and is provided with a connecting piece (4) matched with the V-shaped collar (2), the edge of the connecting piece (4) is sewn to the position of the edge of the V-shaped collar (2), the connecting piece (4) is provided with a round collar (5), and the lower end of the collar of the V-shaped collar (2) extends to the position close to a lower hem (3) to form a deep V-shaped collar structure. The back of the clothes body is made of a fabric, the fabric is formed by interweaving warp yarn and weft yarn, and the cross sections of the both the warp yarn and the weft yarn are triangular. The cashmere sweater has the advantage of being high in layering after being worn. The fabric is high in glossiness.

The invention belongs to the technical field of silkworm disease detection, and discloses an intelligent detection system and method for silkworm nuclear polyhedrosis. The intelligent test system forthe indoor multi-variety silkworm nuclear polyhedrosis comprises a detection sample preparation module, a detection sample storage module, an image acquisition module, a light source control module, adisplay module, a central processing module, a signal transmission module, a cloud server, an image processing module, a data judgment output module, a data storage module and a voice prompt module.According to the invention, the detection sample is subjected to image acquisition, and the acquired image is compared with the result obtained through the test so as to identify, so that the accuracyof the silkworm nuclear polyhedrosis test detection result can be improved, and the interference of the external factors can be avoided; and meanwhile, in the multi-variety silkworm nuclear polyhedrosis test detection process, voice-assisted operation can be carried out, so that an operator and a tester can finish the operation more accurately, and the intelligence of the whole device is improved.