40results about How to "Judgment is intuitive" patented technology

The invention relates to the field of emulsion paint quality detection, and especially relates to a method for rapidly detecting crystalline bloom resistance of priming paint effect. The method comprises the following steps: (1) a proper amount of color paste is added into the priming paint to be detected, and the priming paint to be detected is stirred, so that the color paste is uniformly dispersed; (2) a putty layer whose thickness scope is 2-4 mm is scraped on a test plate, and drying is carried out for 1-6 hours; after the putty is dried, the priming paint to be detected prepared in the step (1) of a certain thickness is painted by a roller or a brush on the putty layer of the test plate; (3) the test plate prepared in the step (2) which is coated by the priming paint to be detected is dried, and timing observation with naked eyes in the drying process is carried out and seepage degree is recorded; and multiple times of seepage degree value records are used for evaluating change trends of crystalline bloom resistance of the priming paint. The method conforms to real construction conditions and eliminates interference of finish on detection results, and at the same time trends of crystalline bloom resistance can be obtained.

The invention discloses a method for inspecting macrostructure defects of a titanium alloy raw material, which can be used for finding macrostructure unusual conditions of the titanium alloy raw material. With the adoption of the method, tissue genetic defects caused by unusual forging deformation of the titanium alloy raw material after blooming forging of a cast ingot can be detected. The method comprises the following steps: cutting out a macrostructure test piece with the thickness of 20mm+ / -3mm from the titanium alloy raw material; preserving the heat in a heating furnace with the temperature lower than a beta conversion temperature by 30-40 DEG C for 60 minutes till the temperature is raised to be higher than the beta conversion temperature by 15-20 DEC by power; preserving the heat for 30 minutes with the furnace temperature uniformity within + / -5 DEG C and then cooling by air; then corroding and observing a macrostructure. The method is applicable to inspection of the macrostructures of alpha-type, alpha-beta-type and near beta-type titanium alloy raw materials; the macrostructure defects of the titanium alloy raw materials can be judged directly and clearly and economic losses caused by the fact that the titanium alloy raw materials with the macrostructure defects are utilized to produce a forging piece can be controlled.

The invention relates to an antibody indirect immunofluorescence test method for distinguishing whether an immune animal is infected with influenza A virus or not. The method comprises the following steps of: expressing NA protein of influenza A virus as antigen with insect baculovirus; establishing the antibody indirect immunofluorescence test method; and detecting the serum antibody of the NA protein of the influenza A virus. The expressed protein can be directly used as the antigen without purification. The method established by the invention is a detection method matched with the marking vaccine for the influenza A virus, which is used for distinguishing whether the animal vaccinated with the influenza A virus marking vaccine, such as birds, pigs and the like, are infected with corresponding subtype influenza virus or not; as a screening method, the method can be used for detecting the clinical serum sample and determining whether the animal vaccinated with the influenza A virus marking vaccine, such as the birds, pigs and the like, are infected with the corresponding subtype influenza virus or not; and therefore, corresponding preventative measures can be taken as soon as possible so as to eliminate and kill the corresponding epidemic clinical influenza A virus.

The invention relates to a low-frequency active towed line array sonar shallow sea detection efficiency evaluation method based on a cloud model, which comprises the following steps: establishing a low-frequency active towed linear array sonar shallow sea detection efficiency index system; generating a detection efficiency standard sample set psi0; calculating the weight of each detection efficiency index of the psi0 by using a variation coefficient improved CRITIC method for the psi0; sequencing elements in the psi0 to generate psi1, and recombining to generate psi2; calculating the digital characteristic values of n indices and I levels multidimensional cloud model by using an MBMCT-SR algorithm for psi2 to generate I n-dimensional normal clouds; selecting sonar parameters and calculating each detection efficiency index; and substituting the sonar parameters into a target strength formula to calculate the certainty degree of the sonar parameters belonging to each detection efficiencygrade, and judging the detection efficiency grade according to a maximum certainty degree principle. The low-frequency active towed line array sonar shallow sea detection efficiency evaluation methodcan quickly and intuitively judge the detection efficiency and provide an auxiliary decision for the combat use of the low-frequency active towed linear array sonar.

The invention discloses a metal ion detection method based on a graphene quantum dot fluorescent probe array. The detection method comprises the following steps: firstly, preparing graphene quantum dots by a hydrothermal method, and doping the graphene quantum dots by taking the graphene quantum dots as a raw material to sequentially prepare nitrogen-doped graphene quantum dots, phosphorus-doped graphene quantum dots, sulfur-doped graphene quantum dots and boron-doped graphene quantum dots; and then, forming a fluorescent probe array by using the graphene quantum dots and the doped graphene quantum dots, recording the change of the fluorescence intensity of the graphene quantum dots caused by various metal ions, and detecting and distinguishing the metal ions by using a linear discriminantanalysis method. The sensor array adopted by the invention is simple in preparation method, low in cost and small in required sample amount. The sensor array can reach 100% metal ion distinguishing accuracy. Various metal ions can be simultaneously detected and distinguished. The detection period is short, and the controllability is high. Used instruments are simple, and result judgment is visual.

The invention provides an improved detecting method for solid phase polypeptide synthesis by use of triketohydrindene hydrate, and the method comprises the following steps of: 1) dissolving 500mg of triketohydrindene hydrate with 12.5ml of boiled distilled water to obtain a yellow solution; adding a vitamin C solution under agitation and continuously agitating after sediment for 15 minutes, moving to a refrigerator to be cooled to 4 DEG C, washing with purified water for 2-3 times, processing with a vacuum drier to obtain reduced triketohydrindene hydrate; 2) weighing 2g of Rink_Amide_MBHA resin, calculating mole number, selecting amino acid with a Fmoc protective radial, reacting for 2 hours under effect of a nitrogen methyl pyrrolidone solution with 8% of carbodiimide to obtain peptide resin, then processing with 25% of a piperidine solution for 30min to obtain peptide resin without the protective radial; and 3) taking 2-5mg of peptide resin without the protective radial, adding 300 microlitres of Buffer A and 75 microlitres of Buffer B, mixing uniformly, adding by water at 100 DEG C for 15min and placing in water at 15-20 DEG C to be cooled to room temperature; and adding 1.2ml of 60% ethanol solution, mixing uniformly, and measuring absorbance and reading the absorbance.

The invention discloses a stratum pipeline detection radar and a detection method. The stratum pipeline detection radar comprises a radar box (10), an operating lever (20) and a first displayer (31). One end of the operating lever (20) is flexibly connected with a handle (30) via a first steering member (21). The handle (30) is arranged in an adjustable inclined angle in a horizontal / or vertical direction relative to the operating lever (20) with the first steering member (21) acting as the center. The first displayer (31) is fixedly arranged on the handle (30). The other end of the operating rod (20) and the radar box (10) are arranged in a way of forming the adjustable inclined angle via a second steering member (22). The operating lever (20) is a length-adjustable telescopic rod. The method comprises a power-on step, a calibration step, an adjustment step, a detection step and a judgment step. The stratum pipeline detection radar has the effects that height adjustment according to the use requirements is facilitated and observation of detection results is facilitated.

The invention relates to the field of electrical equipment, in particular to a voltage transformer protection device. The voltage transformer protection device comprises an insulating cylinder, an installation arm and a high-voltage current-limiting fuse installation base; the insulating cylinder is of a hollow tubular structure and gets evenly thinner from the lower wire outgoing end to the upper wire connecting end, a contact buffering spring is arranged on the inner wall of the upper wire connecting end, an anti-drop unit is arranged at the lower wire outgoing end, and the installation arm is fixedly connected to the lower wire outgoing end of the insulating cylinder; the high-voltage current-limiting fuse installation base comprises a fuse base, an insulating-rod installation end and a cross arm. The voltage transformer protection device has the advantages that replacement of a high-voltage current-limiting fuse by an insulating tension pole is facilitated in case of constant power, installation of the pole by maintenance workers is not needed, and labor intensity and complexity are lowered; by the arrangement of a fault indicator and a communicator, judgment of whether the fuse is fused or not is more visual, information tips can be directly sent to relevant personnel after fusing of the fuse, and fault sites can be judged rapidly.

The invention discloses CPA (cross priming amplification) detection primers for GSIV (giant salamander iridovirus) and an application. A CPA detection kit for the GSIV comprises the following components: 10*ThermoPol Reaction Buffer, Bst DNA polymerase, dNTPs, cross primers CPF and CPR, detection primers DF and DR, bomper primers DPF and DPR, MgSO4, Betaine and a nucleic acid test strip. The CPA detection primers have the characteristics of being simple, convenient, rapid and high in specificity and sensitivity, result determination is objective and visual, the cost is low, and the primers are convenient to use and quite safe to human and environment. The CPA detection primers not only can be used in a specialized laboratory, but also can be applied to outdoor on-site quick detection, and the GSIV in a sample can be detected accurately within 1.5 h only with a metal bath or water bath.

The invention provides a three-dimensional stereo playback system based on a panoramic circular shooting technology. The method comprises the steps that a user starts a circular shooting device to carry out 360-degree circular shooting on a scene to be recorded; an image collection device transmits the shot multi-angle images to a processor; the processor carries out data processing and analysis operation on the images and establishes a virtual space coordinate system for carrying out stereo recombination on the shot images, three-dimensional data is formed and introduced into a memory for storage; and after the user selects a scene playback function, the system introduces related data into a three-dimensional stereo image screen, the three-dimensional stereo images are displayed by the screen, and the three-dimensional stereo playback based on the panoramic circular shooting technology is finally completed. The system is low in distortion degree and displays the three-dimensional stereo images which are real and sensible in height, width and thickness, so that more visual images are provided for penalties of judges on a match field, the accuracy and reliability of the penalties are improved, and the enjoyment of a football match is increased.

The invention relates to a functionalized graphene based electrochemical sensor array. The electrochemical sensor array comprises an electrode, a reduced graphene probe provided with stable BSA and modified on the surface of the electrode, and a calf thymus DNA functionalized reduced graphene probe, wherein the concentration of the reduced graphene probe with stable BSA is identical with that of the calf thymus DNA functionalized reduced graphene probe. The sensor array platform can be used for distinguishing different cancer cells and different states of the same cancer cell such as drug-resistant breast cancer cells and metastatic breast cancer cell specimens; the sensor identification unit is designed to perform simulation interaction with the cells, and combined with the electrochemical method with the ultrahigh sensitivity, so that the detection performance of the sensor can be obviously improved; furthermore, the electrochemical sensor array can be used for distinguishing different cells at 100-cell level; the detection accuracy can be up to 100%; the limit of detection of the cancer cells in the single type can be up to that of the single cell level.

The invention relates to a liver positioning tube, formed by main body and guide wire made from macromolecule materials, wherein the front of main body has at least three ball bubbles; each ball bubble has liquid outlet of liquid tube, air outlet of air tube and air bubble; the liquid tube and air tube are in the main body; the liquid outlet and air outlet extend out the front tube of main body distantly; the air bubble through to the air inlet is on the outer tube of main body; the liquid inlet and the air inlet extend outside the main body; the wire is longer than liquid tube; the wire is smaller then liquid tube. The inventive tube can use multi-chamber multi-bubble to judge the integral interface of liver, to mark target liver in short time.

A color-change indication thermosetting glue / conductive adhesive comprises resin and a thermosensitive color-change material which is an irreversible thermosensitive color-change material, the range of the curing temperature H of the epoxy resin is H1-H2, and the color-change temperature of the thermosensitive color-change material is L, wherein H1<=L<=H2. The color-change indication thermosettingglue / conductive adhesive is subjected to color change when the curing temperature is L so as to visually, rapidly and preliminarily determine whether the color-change indication thermosetting glue / conductive adhesive is completely cured or not.

The invention provides a method for detecting microorganisms in honey, and relates to the technical field of honey quality detection. The method comprises the following steps: sucking 1ml of honey to be detected with a straw, adding the honey into a beaker, adding 10ml of sterile water, fully mixing to make diluted honey water, and keeping the diluted honey water into a sterile environment of which the temperature is 30-35 DEG C for 6-8 hours; sucking 1ml of honey water with a straw, adding the honey water into a culture groove of a sample card, adding a culture solution into the culture groove, covering an upper cover plate of the sample card, and sealing with water; putting the water-sealed sample card into an incubator for constant-temperature culture, and culturing at the temperature 32-34 DEG C for 36 hours; observing whether or not bubbles are produced in the water sealing surface of the sample card, wherein the microorganisms exist if the bubbles are produced, and the microorganisms do not exist if no bubbles are produced. The detection method provided by the invention is used for detecting whether or not the honey contains any microorganism. The detection method is easy to operate, the judgment of a detection result is visual, and misjudgment is prevented.

The invention discloses an X-Y direction included angle measurement and motion compensation method based on an image microscopic scanning platform, which can help instrument assembly personnel to conveniently and intuitively judge and measure the installation included angle of the scanning platform in the motion direction, and readjust the structure assembly of the platform according to the measured included angle. When the scanning platform moves in the X-axis direction and the Y-axis direction, the moving direction is kept vertical or corresponding motion compensation is carried out on the platform along a scanning track motion acquisition image according to the included angle of the moving direction; the problem that the scanning platform cannot accurately complete efficient splicing of collected view images due to the fact that the installation perpendicularity in the two movement directions does not reach the standard is solved, the image processing efficiency in the automatic scanning process is effectively improved, and the process implementation difficulty of later image splicing is lowered. And the working difficulty and intensity of technical assembly personnel are reduced, the debugging efficiency and precision are ensured, the method has important significance in maintaining stable image acquisition of an automatic microscopic scanner, and the method has a wide application prospect in the medical pathological slide microscopic vision automatic detection industry.

The invention discloses a color grade determination method for a defect in a roller through an airborne flaw detector. The method employs a supersonic wave flaw detector to perform flaw detection on a working layer and a binding layer of the roller, and the reference sensitivity is set. The flaw detector takes the height of amplitude of supersonic wave as an evaluation index value; an actual measured value is an echo value received by a normal probe; and a display value is shown after conversion. The actual measured value and the display value are set to satisfy a linear relation, and the actual measured value is set into ten risk levels and corresponding colors of the defect in the roller. When the risk level value is 1.00 and the color is purple, a risk alarm of the roller is determined, and when the risk level value is 0.60 and the color is above light yellow, a roller risk pre-warning is determined. Once the working layer and binding layer of the roller is subjected to flaw detection by the flaw detector through the method, the amplitude of the detected wave is converted to form corresponding grades and colors. The grades and colors are defined, so that direct accurate determination of the defect in the roller is given, and the working performance is improved.

The invention relates to the field of emulsion paint quality detection, and especially relates to a method for rapidly detecting crystalline bloom resistance of priming paint effect. The method comprises the following steps: (1) a proper amount of color paste is added into the priming paint to be detected, and the priming paint to be detected is stirred, so that the color paste is uniformly dispersed; (2) a putty layer whose thickness scope is 2-4 mm is scraped on a test plate, and drying is carried out for 1-6 hours; after the putty is dried, the priming paint to be detected prepared in the step (1) of a certain thickness is painted by a roller or a brush on the putty layer of the test plate; (3) the test plate prepared in the step (2) which is coated by the priming paint to be detected is dried, and timing observation with naked eyes in the drying process is carried out and seepage degree is recorded; and multiple times of seepage degree value records are used for evaluating change trends of crystalline bloom resistance of the priming paint. The method conforms to real construction conditions and eliminates interference of finish on detection results, and at the same time trends of crystalline bloom resistance can be obtained.

The invention discloses a sensor rapid detection device which comprises a base, a station fixing mechanism, a parameter display mechanism and an operation panel; a supporting plate is fixedly installed on the upper portion of the base; and four symmetrically-arranged supporting legs are fixedly installed at the bottom of the base. The station fixing mechanism comprises an L-shaped fixing frame, atelescopic air cylinder, a fixing plate, a guide sleeve, two metal rods, a through groove, a supporting piece, a connecting plate, a rubber pressing block and four rubber blocks; the parameter displaymechanism comprises a box body, a rear cover, a controller, a signal indicator lamp, a touch display screen and a power switch; the operation panel is fixedly installed on the upper portion of the supporting plate; and a pressing button and a loosening button are symmetrically arranged on the operation panel. According to the invention, trouble is saved when the sensor is fixed and taken out, whether the sensor is a qualified product can be visually and quickly judged, the detection efficiency can be greatly improved, the device is convenient to move and use, the position is convenient to belocked, the vibration is small during working, and the ground can be prevented from being cracked by shocking.

The invention discloses a method for judging a weak surrounding rock tunnel primary support cavity. The method comprises the steps of performing knocking detection on an area which can be in direct contact with a primary support, performing drilling treatment on a position where an empty sound appears, and judging the position of the cavity according to whether virtual ballast falls off or not after drilling; arranging drilling points in an area which cannot be in direct contact with the primary support according to a certain distance, and the certain distance being smaller than 100 cm; drilling a drilling point, preliminarily judging according to the drilling speed of a drill bit during drilling, drilling a second hole at a position 10 to 15 cm above the drilling point when the drill bit at the drilling position is too fast in instant drilling and virtual ballast falls off at the drilling position; and judging the position of the cavity according to the drilling speed of the drill bit when the second hole is drilled. According to the method for judging the weak surrounding rock tunnel primary support cavity, the interior of the primary support can be more comprehensively checked and judged.

The invention discloses a sensor rapid detection device, which comprises a base, a station fixing mechanism, a parameter display mechanism and an operation panel. A support plate is fixedly installed on the upper part of the base, and four symmetrically arranged legs are fixedly installed on the bottom of the base. The station fixing mechanism includes an L-shaped fixing frame, a telescopic cylinder, a fixing plate, a guide sleeve, two metal rods, a through groove, a support piece, a connecting plate, a rubber pressing block and four rubber blocks. The parameter display mechanism includes a box body, a rear Cover, controller, signal indicator light, touch display screen and power switch, the operation panel is fixedly installed on the upper part of the support plate, and the operation panel is symmetrically provided with pressing buttons and release buttons. The present invention saves trouble when fixing and taking out the sensor, can intuitively and quickly determine whether the sensor is a qualified product, can greatly improve the detection efficiency, is easy to move, easy to use, easy to lock the position, and has less vibration during work, which can prevent vibration Crack the ground.

The invention discloses a detection kit for an indirect blood coagulation antibody of macrococcus caseolyticus as well as preparation and application of the detection kit. The kit comprises (1), indirect blood coagulation antigen of the macrococcus caseolyticus, (2), standard positive serum, (3) standard negative serum, and (4), diluting liquid. According to the detection kit for the indirect blood coagulation antibody of the macrococcus caseolyticus as well as the preparation and the application of the detection kit, the kit has the beneficial effects of being simple and convenient to operate, and is suitable for being widely popularized and used in various basic veterinary related units and farms; the kit only needs to use several simple consumable materials and a temperature box when asample is detected, and can be used even in a livestock farm with relatively simple conditions; the result can be judged directly, only by eyes can judge; an operator does not need professional knowledge and does not need to be subjected to professional training, and can detect only by referring to a specification; and the kit is low in coat, economical and practical, and can be accepted by all kinds of users.

The invention discloses a KHV (koi herpes virus) CPA (cross priming amplification) detection primer and an application. A KHV CPA detection kit comprises following ingredients: 10*ThermoPol Reaction Buffer, Bst DNA polymerase, dNTPs, cross primers CPF and CPR, detection primers DF and DR, stripping primers DPF and DPR, MgSO4, Betaine and a nucleic acid test strip. The KHV CPA detection primer has the characteristics of simplicity, convenience, rapidness and high specificity and sensitivity and is objective and direct in determination of results, low in cost, convenient to use and very safe to people and the environment. The KHV CPA detection primer not only can be used in a special laboratory, but also can be applied to rapid onsite detection in the field, only one metal bath or water bath kettle is required, and a KHV in a sample can be accurately detected within 1.5 h.

The invention discloses a liquid flow go-no go gauge, which comprises an energy storage device, a safety valve, an upper limit flow limiter, a lower limit flower limiter, a left stop valve, a right stop valve, an upper pressure sensor, a flow limiter to be detected, a lower pressure sensor and a flow regulation valve, wherein the safety valve is communicated with the energy storage device; the left stop valve is communicated with the energy storage device after being connected in series with the upper limit flow limiter; the right stop valve is communicated with the energy storage device after being connected in series with the lower limit flow limiter; the upper end of the upper pressure sensor is simultaneously communicated with the left stop valve and the right stop valve, and the lower end of the upper pressure sensor is connected with the oil inlet end of the flow limiter to be detected; the oil outlet end of the flow limiter to be detected is connected with the lower pressure sensor; the lower pressure sensor is communicated with the flow regulation valve. The liquid flow go-no go gauge is simple in structure, low in construction cost, economical and practical, all flow limiters can be detected on line, the detection cost can be lowered, and a judgment method is simple and direct; meanwhile, a system can run under lower pressure, difficulty in implementation is greatly lowered, and the safety is greatly improved.

The invention provides an improved detecting method for solid phase polypeptide synthesis by use of triketohydrindene hydrate, and the method comprises the following steps of: 1) dissolving 500mg of triketohydrindene hydrate with 12.5ml of boiled distilled water to obtain a yellow solution; adding a vitamin C solution under agitation and continuously agitating after sediment for 15 minutes, moving to a refrigerator to be cooled to 4 DEG C, washing with purified water for 2-3 times, processing with a vacuum drier to obtain reduced triketohydrindene hydrate; 2) weighing 2g of Rink_Amide_MBHA resin, calculating mole number, selecting amino acid with a Fmoc protective radial, reacting for 2 hours under effect of a nitrogen methyl pyrrolidone solution with 8% of carbodiimide to obtain peptide resin, then processing with 25% of a piperidine solution for 30min to obtain peptide resin without the protective radial; and 3) taking 2-5mg of peptide resin without the protective radial, adding 300 microlitres of Buffer A and 75 microlitres of Buffer B, mixing uniformly, adding by water at 100 DEG C for 15min and placing in water at 15-20 DEG C to be cooled to room temperature; and adding 1.2ml of 60% ethanol solution, mixing uniformly, and measuring absorbance and reading the absorbance.

The invention discloses a color grade determination method for a defect in a roller through an airborne flaw detector. The method employs a supersonic wave flaw detector to perform flaw detection on a working layer and a binding layer of the roller, and the reference sensitivity is set. The flaw detector takes the height of amplitude of supersonic wave as an evaluation index value; an actual measured value is an echo value received by a normal probe; and a display value is shown after conversion. The actual measured value and the display value are set to satisfy a linear relation, and the actual measured value is set into ten risk levels and corresponding colors of the defect in the roller. When the risk level value is 1.00 and the color is purple, a risk alarm of the roller is determined, and when the risk level value is 0.60 and the color is above light yellow, a roller risk pre-warning is determined. Once the working layer and binding layer of the roller is subjected to flaw detection by the flaw detector through the method, the amplitude of the detected wave is converted to form corresponding grades and colors. The grades and colors are defined, so that direct accurate determination of the defect in the roller is given, and the working performance is improved.

The invention provides an RT-CPA detection primer and kit for swine transmissible gastroenteritis virus, and belongs to the technical field of swine virus disease virus detection, the RT-CPA detection primer comprises SD-CPF, SD-CPR, SD-F, SD-R, SD-DF and SD-DR; and the nucleotide sequences are shown as SEQ ID No.1-6 in sequence. The primer provided by the invention is good in specificity and can effectively detect the swine transmissible gastroenteritis virus; the method is rapid and efficient, the detection time is about 90 min, and the method is very suitable for on-site rapid detection of TGEV; the method does not depend on expensive instruments and equipment and professional detection personnel, and the detection cost is low; the detection result is simple, objective and visual to judge; the sensitivity is high, and 10 copies / mu L of TGEV can be detected.

The invention discloses a liquid flow go-no go gauge, which comprises an energy storage device, a safety valve, an upper limit flow limiter, a lower limit flower limiter, a left stop valve, a right stop valve, an upper pressure sensor, a flow limiter to be detected, a lower pressure sensor and a flow regulation valve, wherein the safety valve is communicated with the energy storage device; the left stop valve is communicated with the energy storage device after being connected in series with the upper limit flow limiter; the right stop valve is communicated with the energy storage device after being connected in series with the lower limit flow limiter; the upper end of the upper pressure sensor is simultaneously communicated with the left stop valve and the right stop valve, and the lower end of the upper pressure sensor is connected with the oil inlet end of the flow limiter to be detected; the oil outlet end of the flow limiter to be detected is connected with the lower pressure sensor; the lower pressure sensor is communicated with the flow regulation valve. The liquid flow go-no go gauge is simple in structure, low in construction cost, economical and practical, all flow limiters can be detected on line, the detection cost can be lowered, and a judgment method is simple and direct; meanwhile, a system can run under lower pressure, difficulty in implementation is greatly lowered, and the safety is greatly improved.

The invention relates to a liver positioning tube, formed by main body and guide wire made from macromolecule materials, wherein the front of main body has at least three ball bubbles; each ball bubble has liquid outlet of liquid tube, air outlet of air tube and air bubble; the liquid tube and air tube are in the main body; the liquid outlet and air outlet extend out the front tube of main body distantly; the air bubble through to the air inlet is on the outer tube of main body; the liquid inlet and the air inlet extend outside the main body; the wire is longer than liquid tube; the wire is smaller then liquid tube. The inventive tube can use multi-chamber multi-bubble to judge the integral interface of liver, to mark target liver in short time.