CN106525555A - Pretreatment device for detection of irradiation aquatic product derivative - Google Patents
Pretreatment device for detection of irradiation aquatic product derivative Download PDFInfo
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- CN106525555A CN106525555A CN201610854446.XA CN201610854446A CN106525555A CN 106525555 A CN106525555 A CN 106525555A CN 201610854446 A CN201610854446 A CN 201610854446A CN 106525555 A CN106525555 A CN 106525555A
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- seal case
- cylinder
- aquatic products
- mouth
- pretreatment unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
- G01N2001/4088—Concentrating samples by other techniques involving separation of suspended solids filtration
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a pretreatment device for detection of an irradiation aquatic product derivative. The problem that during vacuumizing, because sealing between a filtering barrel and a seal box is poor, external gas enters a vacuumized airtight cavity, so that negative pressure inside the airtight cavity is insufficient, and then filtering treatment on a sample extracting solution is affected is solved through the pretreatment device. The pretreatment device comprises a seal box with an airtight inner cavity, a negative-pressure pumping port formed in the external side face of the seal box, a sleeve body which is arranged on the external top face of the seal box and connected with the seal box in a sealed mode, a filtering barrel inserted into the sleeve body and a self-adaptation pretightening seal mechanism arranged inside the seal box.
Description
Technical field
The present invention relates to irradiation aquatic products derivative detection field, and in particular to a kind of derivative analyte detection of irradiation aquatic products is used
Pretreatment unit.
Background technology
Currently for increasingly serious irradiation Safety of Aquatic Products sex chromosome mosaicism, gradually carry out the derivative analyte detection skill of irradiation aquatic products
Art research, the monitoring and irradiation to irradiation aquatic products is to the comprehensive of aquatic products quality and systematically studies, and lifts aquatic products peace
Full control, to ensure the quality safety of aquatic products.In the derivative analyte detection of irradiation aquatic products, after the sample pre-treatments of aquatic products
The sample extracting solution of gained needs to carry out filtration treatment, and the liquid after filtration treatment can just carry out Instrumental Analysis.
Negative pressure filtration mode is the aquatic products sample extracting solution pretreatment in current irradiation aquatic products derivative detection process
A kind of mode adopted during filtration.Current this kind of negative pressure filtration device generally includes aspiration pump, containment housing and cartridge filter, and
The placement through hole communicated with the inner chamber of containment housing is set on the top surface of containment housing, and what cartridge filter can be taken off is plugged in placement
In through hole, and the bottom surface of cartridge filter is provided with filter membrane interlayer.Sample extracting solution is injected in cartridge filter in practical work process,
And the inner chamber of seal case is vacuumized by aspiration pump, so that the sample extracting solution in cartridge filter passes through filter membrane,
Obtain fluid sample to be checked.This kind of negative pressure filtration device during vacuumizing, in order to avoid place through hole and cartridge filter it
Between produce gas leakage, it is common practice to sealing ring is set between through hole and cartridge filter placing directly；But this sealing means
Sealing effectiveness is not often good, in seal case inner chamber vacuum, as the negative pressure of seal case inner chamber increases, often holds
Easily leakage problem is produced between placement through hole and cartridge filter, cause ambient atmos to enter seal case inner chamber, affect sample to carry
Take the filtration treatment of liquid.On the other hand, in actual use, as cartridge filter needs Jing often to take out cleaning and fill sample, make
The sealing ring between through hole and cartridge filter must be placed easily to loosen, produce gap, this also results in the external world in vacuum
Gas enters seal case inner chamber, affects the problem of the filtration treatment of sample extracting solution.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided one kind can effectively solving vacuumizing
During because of the poor sealing between cartridge filter and seal case, and the ambient atmos for occurring enter the airtight cavity that vacuumizes
It is interior, cause the negative pressure in airtight cavity not enough, affect the irradiation aquatic products derivative of the problem of the filtration treatment of sample extracting solution
Detection pretreatment unit.
The technical scheme is that：
A kind of derivative analyte detection pretreatment unit of irradiation aquatic products includes the seal case with sealed internal chamber, is arranged on sealing
Negative-pressure ward mouth on casing lateral surface, it is arranged on the housing sleeve being tightly connected on the outer top surface of seal case and with seal case
Body, the cartridge filter being plugged in housing sleeve body and the self adaptation pretension sealing mechanism being arranged in seal case, the seal box
The medial surface of the sealed internal chamber of body is provided with the first interface communicated with seal case lateral surface, and the axis of the placement body is erected
It is straight to arrange, the upper and lower ends opening of body is placed, the bottom for placing body is the conical sleeve that internal diameter is gradually reduced from top to bottom, is put
Put the lower ending opening of body to communicate with the sealed internal chamber of seal case, the medial surface of the conical sleeve is provided with the first sealing ring；
The cartridge filter includes upper cylinder, middle tapered sleeve and lower cylinder from top to bottom successively, and the internal diameter of the upper cylinder is more than lower cylinder
Internal diameter, the internal diameter of middle tapered sleeve are gradually reduced from top to bottom, and the lateral surface of the upper cylinder is provided with the second sealing ring, the lower circle
Cylinder in be sequentially provided with filter membrane interlayer, the first dividing plate and second partition from top to bottom, on the lower cylinder and positioned at filter membrane every
It is provided between layer and the first dividing plate and picks and places mouth through the inside and outside side of lower cylinder；The self adaptation pretension sealing mechanism includes setting
Put in the vertical cylinder body on the inner bottom surface of seal case, the piston body being arranged in vertical cylinder body and piston rod, and piston rod
Upper end is located at the top of vertical cylinder body, is provided with upper limit position block on the vertical cylinder body medial surface and above the piston body, vertically
The lateral surface of cylinder body is provided with the second interface and balance through hole connected with vertical cylinder body, and second interface is located on upper limit position block
Side, balance through hole are located at below piston body, are tightly connected by the first pipeline between the second interface and first interface, described
Back-moving spring is provided between piston body and vertical cylinder body inner bottom surface,
The upper end of the piston rod is provided with the connecting rod for radially extending, and the second partition is provided with piston rod and crosses mouth, piston rod
Mouth is crossed positioned at the surface of piston rod, piston rod is crossed the edge of mouth and is provided with the connecting rod corresponding with connecting rod and crosses mouth.
Cartridge filter not only can be taken out dress sample or clear by the derivative analyte detection pretreatment unit of the irradiation aquatic products of this programme
Wash, and can effectively solving in vacuum because of the poor sealing between cartridge filter and seal case, and occur the external world
Gas is entered in the airtight cavity for vacuumizing, and is caused the negative pressure in airtight cavity not enough, is affected the filtration treatment of sample extracting solution
Problem.
Preferably, also including vaccum-pumping equipment, sealed by second pipe between vaccum-pumping equipment and negative-pressure ward mouth
Connection.
Preferably, being additionally provided with conical hopper in lower cylinder, conical hopper is located between filter membrane interlayer and the first dividing plate,
The top edge of conical hopper is tightly connected with the medial surface of lower cylinder, it is described pick and place mouth positioned at conical hopper and the first dividing plate it
Between.
Preferably, being additionally provided with the filtrate storage container of upper end open, the upper end of filtrate storage container on the first dividing plate
Opening.
Preferably, being vertically provided with lower position block, the balance through hole position on cylinder body medial surface and below piston body
In the lower section of lower position block.
Preferably, seal case lateral surface is provided with the 3rd interface being connected with the sealed internal chamber of seal case, and
3rd interface is provided with controlled valve.
Preferably, second partition is located at the lower end of lower cylinder.
Preferably, filter membrane interlayer is near the upper end of lower cylinder.
Preferably, the taper of the medial surface of conical sleeve is identical with the taper of the lateral surface of middle tapered sleeve.
Preferably, the upper end open for placing body is located at the top of the outer top surface of seal case, the lower end of body is placed
Opening is tightly connected with the top surface of seal case positioned at the lower section of the outer top surface of seal case, the lateral surface for placing body.
The invention has the beneficial effects as follows：Cartridge filter not only can be taken out dress sample or cleaning, and can effectively solving taking out
Because of the poor sealing between cartridge filter and seal case in vacuum process, and the ambient atmos for occurring enter the closed chamber for vacuumizing
In vivo, cause the negative pressure in airtight cavity not enough, affect the problem of the filtration treatment of sample extracting solution.
Description of the drawings
Fig. 1 is a kind of structural representation of the derivative analyte detection pretreatment unit of irradiation aquatic products of the present invention.
Fig. 2 is the cross-sectional view in Fig. 1 at A-A.
In figure：Seal case 1, the 3rd interface 11, controlled valve 12, negative-pressure ward mouth 13, first interface 14, the first pipeline
15, place body 2, conical sleeve 21, the first sealing ring 22, cartridge filter 3, upper cylinder 31, the second sealing ring 32, middle tapered sleeve 33, mistake
Filter membrane interlayer 34, lower cylinder 35, conical hopper 36, pick and place mouth 37, the first dividing plate 38, second partition 39, piston rod cross mouth 310,
Connecting rod crosses mouth 311, filtrate storage container 4, self adaptation pretension sealing mechanism 5, vertical cylinder body 51, piston rod 52, upper limit position block
53rd, piston body 54, back-moving spring 55, lower position block 56, balance through hole 57, connecting rod 58, second interface 59.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of derivative analyte detection pretreatment unit of irradiation aquatic products include vaccum-pumping equipment, with sealed internal chamber
Seal case 1, the negative-pressure ward mouth 13 being arranged on seal case lateral surface, be arranged on the outer top surface of seal case and with it is close
What joint sealing body was tightly connected places body 2, the cartridge filter 3 being plugged in housing sleeve body and the self adaptation being arranged in seal case
Pretension sealing mechanism 5.The vaccum-pumping equipment of the present embodiment is aspiration pump.Pass through second between vaccum-pumping equipment and negative-pressure ward mouth
Seal for pipe joints connects.
The medial surface of the sealed internal chamber of seal case is provided with the first interface 14 communicated with seal case lateral surface.Sealing
Casing lateral surface is provided with the 3rd interface 11 being connected with the sealed internal chamber of seal case, and the 3rd interface is provided with switch valve
Door 12.The controlled valve of the present embodiment is hand switch valve or electromagnetic switch valve.
The axis vertical for placing body is arranged.Place the upper and lower ends opening of body.The upper end open for placing body is located at
The top of the outer top surface of seal case.The lower ending opening of body is placed positioned at the lower section of the outer top surface of seal case.Place body
Lateral surface be tightly connected with the top surface of seal case.The bottom for placing body is the conical sleeve that internal diameter is gradually reduced from top to bottom
21.The lower ending opening for placing body is communicated with the sealed internal chamber of seal case.The medial surface of conical sleeve is provided with the first sealing ring
22.The medial surface of conical sleeve is provided with annular mounting groove, and the first sealing ring is arranged on annular mounting groove.
Cartridge filter includes upper cylinder 31, middle tapered sleeve 33 and lower cylinder 35 from top to bottom successively.The external diameter of upper cylinder is less than and puts
Put the internal diameter of body.Internal diameter of the internal diameter of upper cylinder more than lower cylinder.The internal diameter of middle tapered sleeve is gradually reduced from top to bottom.Conical sleeve
Medial surface taper it is identical with the taper of the lateral surface of middle tapered sleeve.The lateral surface of upper cylinder is provided with the second sealing ring 32.The
Two sealing rings are located at upper cylinder and place between body.First sealing ring is located between conical sleeve and middle tapered sleeve.
It is sequentially provided with filter membrane interlayer 34, the first dividing plate 38 and second partition 39 in lower cylinder from top to bottom.Second partition
Positioned at the lower end of lower cylinder.Filter membrane interlayer is near the upper end of lower cylinder.Conical hopper 36, conical hopper are additionally provided with lower cylinder
Between filter membrane interlayer and the first dividing plate.The top edge of conical hopper is tightly connected with the medial surface of lower cylinder.Lower cylinder
It is upper and be provided between filter membrane interlayer and the first dividing plate and pick and place mouth 37 through the inside and outside side of lower cylinder, the present embodiment
Pick and place mouth to be located between conical hopper and the first dividing plate.The filtrate storage container 4 of upper end open is additionally provided with first dividing plate.Filter
The upper end open of liquid storage container.Filtrate storage container can be introduced/taken out by mouth is picked and placeed.
Self adaptation pretension sealing mechanism includes the vertical cylinder body 51 being arranged on the inner bottom surface of seal case, is arranged on vertically
Piston body 54 and piston rod 52 in cylinder body, and the upper end of piston rod is located at the top of vertical cylinder body.The lower end of piston rod and work
Cock body is connected.Piston rod is vertically arranged.Vertically upper limit position block 53 is provided with cylinder body medial surface and above piston body.Vertically
On cylinder body medial surface and be located at piston body below be provided with lower position block 56.Vertically the lateral surface of cylinder body is provided with and is connected with vertical cylinder body
Logical second interface 59 and balance through hole 57.Second interface is located above upper limit position block.Lead between second interface and first interface
Cross the first pipeline 15 to be tightly connected, the first pipeline is located in seal case.Balance through hole is located at below piston body, the present embodiment
Balance through hole is located at the lower section of lower position block.Back-moving spring 55 is provided between piston body and vertical cylinder body inner bottom surface.
As shown in Figure 1 and Figure 2, the upper end of piston rod is provided with the connecting rod 58 for radially extending.Second partition is provided with piston rod
Cross mouth 310.Piston rod crosses mouth for circular hole, and piston rod crosses the external diameter of the internal diameter more than piston rod of mouth.Piston rod crosses mouth positioned at piston
The surface of bar.Piston rod is crossed the edge of mouth and is provided with the connecting rod corresponding with connecting rod and crosses mouth 311.
The irradiation aquatic products of the present embodiment derive the specifically used as follows of analyte detection pretreatment unit：
First, body is placed in cartridge filter insertion, and makes connecting rod mouth be crossed through corresponding connecting rod, make connecting rod be located at second
The top of dividing plate；Then, cartridge filter is rotated by 90 °, make connecting rod mouth be crossed with connecting rod and stagger, as shown in Figure 2.
Second, sample extracting solution to be filtered is placed in cartridge filter, and controlled valve is closed.
3rd, open vaccum-pumping equipment and the sealed internal chamber of seal case is vacuumized；
During vacuumizing：As the vertical inner chamber of cylinder block above piston body passes through first interface, the first pipeline and second
Interface is connected with outside air, and the vertical inner chamber of cylinder block below piston body is closed interior with seal case by balancing through hole
Chamber connects, thus the air pressure of the vertical inner chamber of cylinder block in vacuum below piston body reduces, and makes piston body band piston
Bar is moved down, and by connecting rod by whole cartridge filter toward drop-down so that the lateral surface of middle tapered sleeve is pressed on the first sealing ring,
And the negative pressure increase of the sealed internal chamber with seal case, the pressure that middle tapered sleeve is pressed on the first sealing ring are also bigger, enter
And formed between tapered sleeve and conical sleeve in ensureing and be reliably tightly connected, it is ensured that the sealing placed between body and cartridge filter connects
Connect, can effectively solving in vacuum because of the poor sealing between cartridge filter and seal case, and occur ambient atmos
Into in the airtight cavity for vacuumizing, cause negative pressure in airtight cavity not enough, affect the filtration treatment of sample extracting solution to ask
Topic.
Meanwhile, during vacuumizing, the sample extracting solution to be filtered in cartridge filter passes through filter membrane interlayer, cocurrent
Enter in filtrate storage container.
4th, after the completion of the sample extracting solution to be filtered in cylinder to be filtered is filtered, vaccum-pumping equipment is closed, and is opened
Controlled valve so that piston body in the presence of back-moving spring on move reset；Then, cartridge filter is rotated by 90 °, makes connection
Bar is crossed mouth with connecting rod and is aligned；Followed by cartridge filter above being carried, so as to filtrate storage container one by cartridge filter and thereon
With by place body on remove.
Claims (10)
1. a kind of derivative analyte detection pretreatment unit of irradiation aquatic products, is characterized in that, including the seal box with sealed internal chamber
Body, the negative-pressure ward mouth being arranged on seal case lateral surface, it is arranged on the outer top surface of seal case and seals with seal case
Placement body, the cartridge filter being plugged in housing sleeve body of connection and the self adaptation pretension sealer being arranged in seal case
Structure, the medial surface of the sealed internal chamber of the seal case are provided with the first interface communicated with seal case lateral surface,
It is described place body axis vertical arrange, place body upper and lower ends opening, place body bottom in without leave
The conical sleeve being gradually reduced under above, the lower ending opening for placing body are communicated with the sealed internal chamber of seal case, the conical sleeve
Medial surface be provided with the first sealing ring；
The cartridge filter includes upper cylinder, middle tapered sleeve and lower cylinder from top to bottom successively, and the internal diameter of the upper cylinder is more than lower circle
The internal diameter of cylinder, the internal diameter of middle tapered sleeve are gradually reduced from top to bottom, and the lateral surface of the upper cylinder is provided with the second sealing ring, described
Filter membrane interlayer, the first dividing plate and second partition is sequentially provided with from top to bottom in lower cylinder, on the lower cylinder and positioned at filtration
It is provided between film interlayer and the first dividing plate and picks and places mouth through the inside and outside side of lower cylinder；
The self adaptation pretension sealing mechanism includes the vertical cylinder body being arranged on the inner bottom surface of seal case, is arranged on vertical cylinder
Internal piston body and piston rod, and the upper end of piston rod is located at the top of vertical cylinder body, on the vertical cylinder body medial surface simultaneously
It is provided with upper limit position block above piston body, the lateral surface of vertical cylinder body is provided with the second interface that connects with vertical cylinder body and flat
Weighing apparatus through hole, and second interface is above upper limit position block, balance through hole is located at below piston body, and the second interface is connect with first
It is tightly connected by the first pipeline between mouthful, between the piston body and vertical cylinder body inner bottom surface, is provided with back-moving spring,
The upper end of the piston rod is provided with the connecting rod for radially extending, and the second partition is provided with piston rod and crosses mouth, piston rod
Mouth is crossed positioned at the surface of piston rod, piston rod is crossed the edge of mouth and is provided with the connecting rod corresponding with connecting rod and crosses mouth.
2. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, also true including taking out
Null device, is tightly connected by second pipe between vaccum-pumping equipment and negative-pressure ward mouth.
3. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the lower cylinder
Conical hopper is additionally provided with inside, conical hopper is located between filter membrane interlayer and the first dividing plate, the top edge of conical hopper and lower circle
The medial surface of cylinder is tightly connected, and the mouth that picks and places is located between conical hopper and the first dividing plate.
4. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, described first every
The filtrate storage container of upper end open, the upper end open of filtrate storage container is additionally provided with plate.
5. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the vertical cylinder
In vivo on side and it is located at below piston body and is provided with lower position block, the balance through hole is positioned at the lower section of lower position block.
6. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the seal box
Outside is provided with the 3rd interface being connected with the sealed internal chamber of seal case, and the 3rd interface is provided with controlled valve.
7. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, described second every
Plate is located at the lower end of lower cylinder.
8. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the filter membrane
Interlayer is near the upper end of lower cylinder.
9. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the conical sleeve
Medial surface taper it is identical with the taper of the lateral surface of middle tapered sleeve.
10. the derivative analyte detection pretreatment unit of irradiation aquatic products according to claim 1, is characterized in that, the placement
The upper end open of body is located at the top of the outer top surface of seal case, and the lower ending opening for placing body is located at the outer top of seal case
The lower section in face, the lateral surface for placing body are tightly connected with the top surface of seal case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854446.XA CN106525555B (en) | 2016-09-27 | 2016-09-27 | Irradiate the derivative analyte detection pretreatment unit of aquatic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854446.XA CN106525555B (en) | 2016-09-27 | 2016-09-27 | Irradiate the derivative analyte detection pretreatment unit of aquatic products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525555A true CN106525555A (en) | 2017-03-22 |
| CN106525555B CN106525555B (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610854446.XA Active CN106525555B (en) | 2016-09-27 | 2016-09-27 | Irradiate the derivative analyte detection pretreatment unit of aquatic products |
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| US20140023567A1 (en) * | 2012-03-02 | 2014-01-23 | Scientific Plastic Products, Inc. | Filter vial |
| CN105107247A (en) * | 2015-07-17 | 2015-12-02 | 浙江省海洋水产研究所 | Suction type aquaculture tail water particle scavenging equipment |
| CN105148577A (en) * | 2015-07-01 | 2015-12-16 | 浙江省海洋水产研究所 | Negative pressure suction type filter for aquatic product detection |
| CN105158048A (en) * | 2015-08-18 | 2015-12-16 | 浙江省海洋水产研究所 | Suction type solid-liquid separator |
| CN204944924U (en) * | 2015-09-06 | 2016-01-06 | 中国人民解放军63653部队 | The continuous enrichment and separation device of colloid in a kind of Rotary Water |
| CN105372095A (en) * | 2015-12-11 | 2016-03-02 | 国家深海基地管理中心 | Deep-sea organism suction-type multistage concentration sampling device |
-
2016
- 2016-09-27 CN CN201610854446.XA patent/CN106525555B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140023567A1 (en) * | 2012-03-02 | 2014-01-23 | Scientific Plastic Products, Inc. | Filter vial |
| CN105148577A (en) * | 2015-07-01 | 2015-12-16 | 浙江省海洋水产研究所 | Negative pressure suction type filter for aquatic product detection |
| CN105107247A (en) * | 2015-07-17 | 2015-12-02 | 浙江省海洋水产研究所 | Suction type aquaculture tail water particle scavenging equipment |
| CN105158048A (en) * | 2015-08-18 | 2015-12-16 | 浙江省海洋水产研究所 | Suction type solid-liquid separator |
| CN204944924U (en) * | 2015-09-06 | 2016-01-06 | 中国人民解放军63653部队 | The continuous enrichment and separation device of colloid in a kind of Rotary Water |
| CN105372095A (en) * | 2015-12-11 | 2016-03-02 | 国家深海基地管理中心 | Deep-sea organism suction-type multistage concentration sampling device |
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| CN106525555B (en) | 2019-01-25 |
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