CN114002001A - Sample collection device for petroleum hydrocarbon pollution detection in soil - Google Patents
Sample collection device for petroleum hydrocarbon pollution detection in soil Download PDFInfo
- Publication number
- CN114002001A CN114002001A CN202111185924.XA CN202111185924A CN114002001A CN 114002001 A CN114002001 A CN 114002001A CN 202111185924 A CN202111185924 A CN 202111185924A CN 114002001 A CN114002001 A CN 114002001A
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- China
- Prior art keywords
- outer tube
- soil
- fixedly connected
- sleeve
- petroleum hydrocarbon
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- 239000002689 soil Substances 0.000 title claims abstract description 47
- 239000003209 petroleum derivative Substances 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title claims description 13
- 239000000523 sample Substances 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 15
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005527 soil sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sample collecting device for detecting petroleum hydrocarbon pollution in soil, which comprises a motor, a sleeve and an outer tube, wherein the output end of the motor is fixedly connected with a U-shaped frame, the bottom of the U-shaped frame is fixedly connected with the top end of the sleeve, the surface of the sleeve is fixedly connected with a spiral plate, and the bottom of one side of the surface of the outer tube is communicated with a transverse tube. This petroleum hydrocarbon pollutes and detects uses sample collection system in soil, there is violently the pipe through the bottom intercommunication of outer tube surface one side, utilize the push pedal to promote soil toward outer, just can promote the degree of depth soil that needs detected to violently manage corresponding position, it just can detect to plug up the export, can effectual improvement detect data's accuracy, there is the push pedal through the inside sliding connection of outer tube, clear up outer tube inside after finishing detecting, can not influence next normal use, adopt electronic mode to take a sample, can save more manpower.
Description
Technical Field
The invention relates to the technical field of soil sampling, in particular to a sample collecting device for detecting petroleum hydrocarbon pollution in soil.
Background
Petroleum hydrocarbon is a complex mixture, wherein benzene series and polycyclic aromatic hydrocarbon are organic substances which have high toxicity and are suspected to have a 'three-cause' effect, and the petroleum hydrocarbon can migrate in a medium, so that the petroleum hydrocarbon can migrate from a leakage source to soil, underground water and air, the pollution area is enlarged, the surrounding environment of a pollution source is influenced, the soil ecosystem can be damaged due to the fact that the concentration of the petroleum hydrocarbon in the soil exceeds the standard, the soil fertility is reduced, plant growth is slowed down, and petroleum hydrocarbon pollutants entering the soil can enter surface water along with surface runoff to cause the pollution of surface water; petroleum hydrocarbon pollutants in the soil can enter underground water through osmosis, so that the underground water is polluted; many substances in petroleum hydrocarbon have volatility and semi-volatility, and can enter air from soil or surface water, so that the petroleum hydrocarbon has great harm to people living at the periphery of a field.
At present, gather the soil sample through sample collection device to detect its petroleum hydrocarbon who contains, petroleum hydrocarbon belongs to volatile material, and general operation is after the sample is accomplished, takes out soil and detects, and at the in-process of operation, its leakproofness is general, leads to the detection data to have the error easily, and inside soil adopts the mode of beating the outer tube to make it discharge moreover, and such mode leads to the outer tube inner wall still to remain, influences the next use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a sample collecting device for detecting petroleum hydrocarbon pollution in soil, which solves the problems that the detection data is easy to have errors due to general sealing performance, the inner wall of an outer pipe is remained, and the next use is influenced.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a petroleum hydrocarbon pollutes sample collection system for detection in soil, includes motor, sleeve pipe and outer tube, the output fixedly connected with U type frame of motor to the bottom and the sheathed tube top fixed connection of U type frame, sheathed tube fixed surface is connected with the spiral board, and the bottom intercommunication of outer tube surface one side has violently the pipe, the inside of violently managing is provided with the probe to the fixed surface of probe is connected with the connection lid, the inside bottom of outer tube is provided with the sealing plug, and violently has sealed lid on one side threaded connection on pipe surface, the inside sliding connection of outer tube has the push pedal to the top fixedly connected with threaded rod of push pedal, the top fixedly connected with roof of outer tube, the top of threaded rod runs through outer tube, roof and sleeve pipe and extends to sheathed tube top.
Preferably, the inner wall of the connecting cover is in threaded connection with the surface of the transverse pipe, and the threaded rod extends to one end of the top of the sleeve and is in threaded connection with a nut on the surface.
Preferably, both sides of the top plate are fixedly connected with screws, the top ends of the screws penetrate through the outer tube and the sleeve and extend to the top of the sleeve, and nuts are connected to the surface threads of one end, extending to the top of the sleeve, of the screws in a threaded mode.
Preferably, the surface of the outer tube is provided with a transparent cover, and one side of the surface of the outer tube is provided with a scale.
Preferably, the bottom fixedly connected with U template of outer tube, the top of U template runs through the sleeve pipe and extends to sheathed tube inside, the bottom of sleeve pipe surface both sides all is provided with the screw, the one end of screw runs through sleeve pipe and U template and extends to the inside of U template.
Preferably, the bottom of the surface of the sleeve is in threaded connection with a drill bit, and the bottom of the drill bit is provided with a through hole.
Preferably, a push rod is arranged inside the threaded rod, a threaded sleeve is fixedly connected to the surface of the push rod, and the inner wall of the threaded sleeve is in threaded connection with the surface of the threaded rod.
Preferably, the top of motor is surely connected with the fixed plate to the equal swing joint in both sides of fixed plate inside has the movable rod, the bottom fixedly connected with bottom plate of movable rod to the equal fixedly connected with baffle in both sides of bottom plate, the top fixedly connected with montant of fixed plate to the equal fixedly connected with handle in top of montant surface both sides, the top fixedly connected with dog of movable rod.
Advantageous effects
The invention provides a sample collection device for detecting petroleum hydrocarbon pollution in soil. Compared with the prior art, the method has the following beneficial effects:
(1) the bottom of one side of the surface of the outer pipe is communicated with a transverse pipe, a probe is arranged in the transverse pipe, the surface of the probe is fixedly connected with a connecting cover, the bottom of the inner part of the outer pipe is provided with a sealing plug, one side of the surface of the transverse pipe is in threaded connection with a sealing cover, the inner part of the outer pipe is connected with a push plate in a sliding manner, the top of the push plate is fixedly connected with a threaded rod, the top end of the outer pipe is fixedly connected with a top plate, the top end of the threaded rod penetrates through the outer pipe, the top plate and a sleeve pipe and extends to the top of the sleeve pipe, after soil is collected, the outlet of the threaded rod is blocked by the sealing plug, volatilization of petroleum hydrocarbon is reduced, then the probe on a detection instrument is inserted into the transverse pipe and can directly enter the inner part of the outer pipe, soil can be detected without being taken out, the use of soil with different depths is required to be detected, and the scale on the surface of the outer pipe is looked at, utilize the push pedal to promote soil toward outer, just can promote the degree of depth soil that needs detect to violently manage corresponding position, will export and plug up just can detect, can effectual improvement detect data's accuracy.
(2) The utility model discloses a sample collection system for petroleum hydrocarbon pollution detection in soil, sample collection system for petroleum hydrocarbon pollution detection in this soil, there is the push pedal through the inside sliding connection of outer tube, and the top fixedly connected with threaded rod of push pedal, the inside of threaded rod is provided with the push rod, and the fixed surface of push rod is connected with the thread bush, the inner wall of thread bush and the surface threaded connection of threaded rod, the bottom threaded connection on sleeve pipe surface has the drill bit, and the through-hole has been seted up to the bottom of drill bit, the push pedal can promote soil when being fit for the depth of detection, can also play the function of clearing up to the outer inside of pipe, detect and clear up the outer inside of pipe after finishing, can not influence next normal use, adopt electronic mode to take a sample, can save more manpower.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a perspective view of the sleeve construction of the present invention;
FIG. 3 is a cross-sectional view of the sleeve construction of the present invention;
FIG. 4 is a cross-sectional view of an outer tube structure of the present invention;
fig. 5 is a partial enlarged view of the invention at a in fig. 3.
In the figure: 1. a motor; 2. a sleeve; 3. an outer tube; 4. a U-shaped frame; 5. a spiral plate; 6. a transverse tube; 7. a probe; 8. a connecting cover; 9. a sealing plug; 10. a sealing cover; 11. pushing the plate; 12. a threaded rod; 13. a screw; 14. a transparent cover; 15. calibration; 16. a U-shaped plate; 17. a screw; 18. a drill bit; 19. a through hole; 20. a push rod; 21. a threaded sleeve; 22. a fixing plate; 23. a movable rod; 24. a base plate; 25. a baffle plate; 26. a vertical rod; 27. a handle; 28. a stopper; 29. a top plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a sample collecting device for detecting petroleum hydrocarbon pollution in soil comprises a motor 1, a sleeve 2 and an outer tube 3, wherein the motor 1 is a servo motor and is controlled by the outer tube, the output end of the motor 1 is fixedly connected with a U-shaped frame 4, the bottom of the U-shaped frame 4 is fixedly connected with the top end of the sleeve 2, the surface of the sleeve 2 is fixedly connected with a spiral plate 5, the bottom of one side of the surface of the outer tube 3 is communicated with a transverse tube 6, a probe 7 is arranged inside the transverse tube 6, the surface of the probe 7 is fixedly connected with a connecting cover 8, the bottom of the inside of the outer tube 3 is provided with a sealing plug 9, one side of the surface of the transverse tube 6 is in threaded connection with a sealing cover 10, the inside of the outer tube 3 is in sliding connection with a push plate 11, the push plate 11 can push soil to a proper detection depth, and can play a function of cleaning the inside of the outer tube 3, and the inside of the outer tube 3 can be cleaned after the detection is finished, will not influence next normal use, adopt electronic mode to take a sample, can save more manpower to the top fixedly connected with threaded rod 12 of push pedal 11, the top fixedly connected with roof 29 of outer tube 3, the top of threaded rod 12 runs through outer tube 3, roof 29 and sleeve pipe 2 and extends to sleeve pipe 2's top.
Set up outer tube 3 in the inside of sleeve pipe 2, can protect outer tube 3, the outside of outer tube 3 also need not wash, can improve the leakproofness simultaneously.
After soil collection finishes, utilize sealing plug 9 to plug up its export, reduce volatilizing of petroleum hydrocarbon, then use probe 7 on the detecting instrument to inject violently the pipe 6 in, can directly get into outer tube 3 inside, need not take out soil and just can detect, need detect the use of different degree of depth soil, look at the scale 15 on outer tube 3 surface, utilize push pedal 11 to push soil outwards, just can promote the corresponding position of violently managing 6 with the degree of depth soil that needs to detect, plug up the export and just can detect, can effectual improvement detected data's accuracy.
In the invention, the inner wall of the connecting cover 8 is in threaded connection with the surface of the transverse pipe 6, and the surface of one end of the threaded rod 12 extending to the top of the sleeve 2 is in threaded connection with a nut.
In the invention, both sides of the top plate 29 are fixedly connected with the screw 13, the top end of the screw 13 penetrates through the outer tube 3 and the sleeve 2 and extends to the top of the sleeve 2, and the surface of one end of the screw 13 extending to the top of the sleeve 2 is connected with a nut in a threaded manner.
In the present invention, the surface of the outer tube 3 is provided with a transparent cover 14, and one side of the surface of the outer tube 3 is provided with a scale 15.
In the invention, the bottom end of the outer pipe 3 is fixedly connected with a U-shaped plate 16, the top of the U-shaped plate 16 penetrates through the sleeve 2 and extends into the sleeve 2, the bottoms of two sides of the surface of the sleeve 2 are respectively provided with a screw 17, and one end of each screw 17 penetrates through the sleeve 2 and the U-shaped plate 16 and extends into the U-shaped plate 16.
In the invention, a drill 18 is connected with the bottom of the surface of the sleeve 2 in a threaded manner, and a through hole 19 is formed at the bottom of the drill 18.
In the invention, a push rod 20 is arranged inside the threaded rod 12, a threaded sleeve 21 is fixedly connected to the surface of the push rod 20, and the inner wall of the threaded sleeve 21 is in threaded connection with the surface of the threaded rod 12.
According to the invention, the top of the motor 1 is fixedly connected with a fixed plate 22, two sides inside the fixed plate 22 are movably connected with movable rods 23, the movable rods 23 play a certain limiting role in movement of the motor 1 and prevent deviation, the bottom end of each movable rod 23 is fixedly connected with a bottom plate 24, two sides of each bottom plate 24 are fixedly connected with baffle plates 25, the baffle plates 25 are arranged and can be directly contacted with the ground, a certain supporting effect is achieved when the motor 1 is drilled underground, the top of the fixed plate 22 is fixedly connected with a vertical rod 26, the tops of two sides of the surface of the vertical rod 26 are fixedly connected with handles 27, and the top end of each movable rod 23 is fixedly connected with a stop block 28.
And those not described in detail in this specification are well within the skill of those in the art.
When the device is used, the outer pipe 3 is inserted into the sleeve 2, the U-shaped plate on the outer pipe 3 is inserted into the sleeve 2, then the U-shaped plate is connected with the sleeve 2 through screws, the threaded rod 12 inside the outer pipe 3 and the screw 13 on the top of the top plate 29 penetrate out of the top of the sleeve 2, the threaded rod 12 and the screw 13 are limited through nuts, then the drill bit 18 is rotated to the bottom of the sleeve 2, the whole device is placed at a place needing sampling, then the handle 27 is held between the two ends, the motor 1 is started through an external switch, the motor 1 drives the U-shaped frame 4 to rotate, the U-shaped frame 4 drives the sleeve 2 to rotate, the drill bit 18 drills a hole in the ground, soil enters the inner part of the outer pipe 3 from the through hole 19, sampling is carried out according to the depth needing sampling, after the sampling is finished, the sleeve 2 is taken out, then the drill bit 18 is rotated, the drill bit 18 is taken off, and then the sealing plug 9 is plugged into the bottom of the outer pipe 3, the threaded rod 12 and the nut on the threaded rod 13 are removed, the screw 17 is removed, the outer tube 3 can be removed from the sleeve 2, the sealing cover 10 is removed, then the probe 7 is inserted into the horizontal pipe 6, the connecting cover 8 is rotated to be connected with the horizontal pipe 6, the detection can be carried out, when the soil with different depths needs to be detected, the push rod 20 is inserted into the threaded rod 12, the threaded sleeve 21 is rotated onto the push rod 20, the push plate 11 is pushed by the push rod 20 to move, the push plate 11 pushes the soil inside the outer tube 3 outwards, the distance of movement is clearly visible on the basis of the scale 15 on the surface of the outer tube 3, which, when moved to the appropriate distance, the removed sealing plug 9 is plugged into the outer tube 3 again, the sealing cap 10 is removed again and inserted into the probe 7, after the soil sampling is detected, the push plate is pushed to the bottommost part of the outer tube 3, so that the soil inside the outer tube 3 can be pushed out completely.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a petroleum hydrocarbon pollutes sample collection system for detection in soil, includes motor (1), sleeve pipe (2) and outer tube (3), its characterized in that: the utility model discloses a motor, including motor (1), the output fixedly connected with U type frame (4) of motor (1) to the bottom of U type frame (4) and the top fixed connection of sleeve pipe (2), the fixed surface of sleeve pipe (2) is connected with spiral plate (5), and the bottom intercommunication of outer tube (3) surface one side has violently pipe (6), the inside of violently pipe (6) is provided with probe (7), and the fixed surface of probe (7) is connected with connection cover (8), the inside bottom of outer tube (3) is provided with sealing plug (9), and one side threaded connection on violently pipe (6) surface has sealed lid (10), the inside sliding connection of outer tube (3) has push pedal (11), and the top fixedly connected with threaded rod (12) of push pedal (11), the top fixedly connected with roof (29) of outer tube (3), the top of threaded rod (12) runs through outer tube (3), A top plate (29) and the sleeve (2) and extends to the top of the sleeve (2).
2. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the inner wall of the connecting cover (8) is in threaded connection with the surface of the transverse pipe (6), and the threaded rod (12) extends to the surface of one end of the top of the sleeve (2) and is in threaded connection with a nut.
3. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the equal fixedly connected with screw rod (13) in both sides at roof (29) top, the top of screw rod (13) runs through outer tube (3) and sleeve pipe (2) and extends to the top of sleeve pipe (2), the surface threaded connection that screw rod (13) extended to sleeve pipe (2) top one end has the nut.
4. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the surface of the outer tube (3) is provided with a transparent cover (14), and one side of the surface of the outer tube (3) is provided with a scale (15).
5. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the bottom fixedly connected with U template (16) of outer tube (3), the inside of sleeve pipe (2) and extending to sleeve pipe (2) is run through at the top of U template (16), the bottom of sleeve pipe (2) surface both sides all is provided with screw (17), the one end of screw (17) runs through sleeve pipe (2) and U template (16) and extends to the inside of U template (16).
6. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the bottom of the surface of the sleeve (2) is in threaded connection with a drill bit (18), and a through hole (19) is formed in the bottom of the drill bit (18).
7. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the inner part of the threaded rod (12) is provided with a push rod (20), the surface of the push rod (20) is fixedly connected with a threaded sleeve (21), and the inner wall of the threaded sleeve (21) is in threaded connection with the surface of the threaded rod (12).
8. The sample collection device for detecting petroleum hydrocarbon pollution in soil as claimed in claim 1, wherein: the top of motor (1) is decided and is connected with fixed plate (22) to the equal swing joint in both sides of fixed plate (22) has movable rod (23), the bottom fixedly connected with bottom plate (24) of movable rod (23) to the equal fixedly connected with baffle (25) in both sides of bottom plate (24), the top fixedly connected with montant (26) of fixed plate (22) to the equal fixedly connected with handle (27) in top of montant (26) surface both sides, the top fixedly connected with dog (28) of movable rod (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185924.XA CN114002001A (en) | 2021-10-12 | 2021-10-12 | Sample collection device for petroleum hydrocarbon pollution detection in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185924.XA CN114002001A (en) | 2021-10-12 | 2021-10-12 | Sample collection device for petroleum hydrocarbon pollution detection in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114002001A true CN114002001A (en) | 2022-02-01 |
Family
ID=79922580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111185924.XA Withdrawn CN114002001A (en) | 2021-10-12 | 2021-10-12 | Sample collection device for petroleum hydrocarbon pollution detection in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114002001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388310A (en) * | 2022-10-27 | 2022-11-25 | 南昌工程学院 | Real-time monitoring device for water and soil conservation state |
-
2021
- 2021-10-12 CN CN202111185924.XA patent/CN114002001A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115388310A (en) * | 2022-10-27 | 2022-11-25 | 南昌工程学院 | Real-time monitoring device for water and soil conservation state |
| CN115388310B (en) * | 2022-10-27 | 2023-03-10 | 南昌工程学院 | Real-time monitoring device for water and soil conservation state |
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Application publication date: 20220201 |
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