CN116223333A - Automatic detection system for soil pore structure information - Google Patents
Automatic detection system for soil pore structure information Download PDFInfo
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- CN116223333A CN116223333A CN202310021811.9A CN202310021811A CN116223333A CN 116223333 A CN116223333 A CN 116223333A CN 202310021811 A CN202310021811 A CN 202310021811A CN 116223333 A CN116223333 A CN 116223333A
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- pore structure
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- 239000002689 soil Substances 0.000 title claims abstract description 60
- 239000011148 porous material Substances 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 17
- 238000002591 computed tomography Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/0846—Investigating permeability, pore-volume, or surface area of porous materials by use of radiation, e.g. transmitted or reflected light
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Soil Working Implements (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an automatic detection system for soil pore structure information, which belongs to the technical field of soil detection and comprises a base, a horizontal screw rod, a vertical screw rod and a clamping mechanism, wherein the horizontal screw rod is arranged on the base, one end of the horizontal screw rod is linked with a horizontal driving motor, a horizontal sliding table is arranged on the horizontal screw rod, the bottom end of the vertical screw rod is rotationally connected with the horizontal sliding table, the clamping mechanism is arranged side by side with the horizontal screw rod, the top end of the vertical screw rod is linked with the vertical driving motor, the vertical screw rod is provided with the vertical sliding table, a controller, a camera and a grinding head motor are fixed on the vertical sliding table, an ultraviolet light source is fixed on a lens of the camera, and a disc grinding head is arranged on an output shaft of the grinding head motor. The automatic detection system for the soil pore structure information can be widely applied to various cultivation matrixes of soil and soilless culture, and the soil pore distribution condition is obtained by processing the cultivation matrixes through a conventional image processing technology, so that the soil pore structure is obtained.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to an automatic detection system for soil pore structure information.
Background
The soil pore structure directly influences the migration path and mode of moisture on the soil surface and in the soil body, and determines the water-holding capacity, permeability, water conductivity and other hydraulic properties of the soil. The rapid acquisition of quantitative information of undisturbed pore structure is a necessary premise for fundamentally knowing the relation between the soil structure and the functions and the internal mechanism of the related process, and is one of the hot spots and difficult problems of long-term attention of soil students.
At present, the research on the soil pore structure is mainly carried out by two modes of in-situ detection and sampling detection. In-situ detection is carried out by detecting soil pores in situ and is generally realized by a sampling, dyeing and tracing method. The dye tracing method is to spray or irrigate the surface of the soil with a colored tracer, penetrate the soil after a period of time, dig out the soil and photograph the section of the dyed soil, and process the obtained image to obtain the pore structure of the soil. The resolution of the image obtained by the method is relatively low, and the small pore is difficult to accurately analyze. In addition, when the method is applied, soil needs to be excavated and a profile is processed, loose soil structures are easily damaged, and the accuracy of the porosity analysis is reduced.
Sampling detection refers to a method of collecting a soil sample and then analyzing the sample. Common methods used in sampling detection are CT scanning and slicing. CT scanning, also known as tomoscanning, uses X-rays to scan a collected soil sample in transmission and uses the resulting image to analyze the porosity. The method has higher accuracy, but has very high cost, so that the soil sample analysis cost is too high, and the method is difficult to popularize and apply in large scale in practice. The slicing method is to soak soil samples with substances such as resin, prepare the soil into slices after consolidation, acquire pictures by a scanner or an electron microscope, and process and analyze the pictures. The resolution of the image obtained by the method is high, and the measured pore structure is accurate. However, special equipment is required for making the slices, and the cost is high; moreover, slicing and image scanning are performed in a distributed manner, which is time-consuming and inefficient.
Disclosure of Invention
The invention aims to provide an automatic detection system for soil pore structure information, which can be widely applied to various cultivation matrixes of soil and soilless culture, and can obtain the soil pore distribution condition by processing through a conventional image processing technology, so as to obtain the soil pore structure.
In order to achieve the above purpose, the invention provides an automatic detection system for soil pore structure information, which comprises a base, a horizontal screw rod, a vertical screw rod and a clamping mechanism, wherein the horizontal screw rod is arranged on the base, one end of the horizontal screw rod is linked with a horizontal driving motor, a horizontal sliding table is arranged on the horizontal screw rod, the bottom end of the vertical screw rod is rotationally connected with the horizontal sliding table, the clamping mechanism is arranged side by side with the horizontal screw rod, the top end of the vertical screw rod is linked with the vertical driving motor, the vertical screw rod is provided with the vertical sliding table, a controller, a camera and a grinding head motor are fixed on the vertical sliding table, an ultraviolet light source is fixed on a lens of the camera, and a disc grinding head is arranged on an output shaft of the grinding head motor.
Preferably, a baffle is arranged at one end of the base, the tail end of the horizontal screw rod is rotationally connected with the baffle, the horizontal screw rod penetrates through the horizontal sliding table and is in threaded connection with the horizontal sliding table, and the bottom surface of the horizontal sliding table is in contact with the base.
Preferably, the clamping mechanism is arranged on the side face of the horizontal sliding table, the clamping mechanism comprises a fixed clamping block and a sliding clamping block, a vertical plate is arranged on one side of the base, the adjusting handle penetrates through the vertical plate and is in rotary connection with the sliding clamping block, and the adjusting handle is in threaded connection with the vertical plate.
Preferably, the controller is fixed above the camera, the camera and the grinding head motor are respectively fixed on two sides of the vertical sliding table, and the lens and the disc-type grinding head are both positioned above the clamping mechanism.
Preferably, the controller is electrically connected with the camera, the ultraviolet light source, the vertical driving motor, the grinding head motor and the horizontal driving motor.
Therefore, the automatic detection system for the soil pore structure information solves the problems of low detection precision of a dyeing tracing method, high detection cost of a CT scanning method, high cost of a slice detection method and low efficiency. Compared with the prior art, the invention has the characteristics of low cost, high automation degree and high detection precision, and can be widely used for detecting the pore structure of various culture matrixes (such as coconut coir, perlite, rock wool and the like) in soil and soilless culture.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an automatic soil pore structure information detecting system according to the present invention;
reference numerals
1. A vertical driving motor; 2. a grinding head motor; 3. disc type grinding head; 4. a vertical screw; 5. a horizontal driving motor; 6. an adjustment handle; 7. a vertical sliding table; 8. a baffle; 9. a horizontal screw; 10. an ultraviolet light source; 11. a camera; 12. a controller; 13. a base; 14. a horizontal slipway; 15. a riser; 16. a clamping mechanism; 17. fixing the clamping blocks; 18. and sliding the clamping blocks.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Examples
As shown in the figure, the automatic detection system for the soil pore structure information comprises a base 13, a horizontal screw rod 9, a vertical screw rod 4 and a clamping mechanism 16. The horizontal lead screw 9 is arranged on the base 13, one end of the base 13 is provided with the baffle 8, the tail end of the horizontal lead screw 9 is rotationally connected with the baffle 8, and the other end of the horizontal lead screw 9 is linked with the horizontal driving motor 5. The horizontal screw rod 9 is provided with a horizontal sliding table 14, the horizontal screw rod 9 passes through the horizontal sliding table 14 and is in threaded connection with the horizontal sliding table 14, and the bottom surface of the horizontal sliding table 14 is contacted with the base 13. When the horizontal driving motor 5 is started, the horizontal lead screw 9 is driven to rotate, and the horizontal sliding table 14 horizontally moves under the action of the threads.
The bottom of vertical lead screw 4 rotates with horizontal slip table 14 to be connected, and the side of vertical lead screw 4 is provided with the backplate, and the top and the vertical driving motor 1 linkage of vertical lead screw 4, vertical driving motor 1 are fixed on the backplate. The vertical screw 4 is provided with a vertical sliding table 7, the vertical sliding table 7 is in threaded connection with the vertical screw 4, and the vertical sliding table 7 is in contact with the backboard. The controller 12, the camera 11 and the grinding head motor 2 are fixed on the vertical sliding table 7, the controller 12 is fixed above the camera 11, the camera 11 and the grinding head motor 2 are respectively fixed on two sides of the vertical sliding table 7, the ultraviolet light source 10 is fixed on a lens of the camera 11, and the disc-type grinding head 3 is arranged on an output shaft of the grinding head motor 2. The lens and the disc-type grinding head 3 are both located above the clamping mechanism 16. The controller 12 is electrically connected with the camera 11, the ultraviolet light source 10, the vertical driving motor 1, the grinding head motor 2 and the horizontal driving motor 5. When the vertical driving motor 1 is started, the vertical screw rod 4 is driven to rotate, and the vertical sliding table 7 moves up and down under the action of the threads, so that the lens and the disc-type grinding head 3 are driven to move up and down.
The clamping mechanism 16 and the horizontal screw rod 9 are placed side by side, the clamping mechanism 16 is arranged on the side face of the horizontal sliding table 14, the clamping mechanism 16 comprises a fixed clamping block 17 and a sliding clamping block 18, a vertical plate 15 is arranged on one side of the base 13, the adjusting handle 6 penetrates through the vertical plate 15 and is in rotary connection with the sliding clamping block 18, and the adjusting handle 6 is in threaded connection with the vertical plate 15. The distance between the sliding clamping block 18 and the bracket of the fixed clamping block 17 can be adjusted by rotating the adjusting handle 6, so that the device is suitable for clamping samples with different sizes.
The detection by using the system comprises the following working steps:
1. samples were prepared. Soil samples were placed into cylindrical PVC tubes and immersed for 24 hours with the addition of impregnant. The impregnant is prepared from epoxy resin: curing agent: diluent = 15:5:3, adding a fluorescent reagent in the preparation process of the impregnant, wherein the impregnant comprises the following components: fluorescent reagent = 100:1.
2. the solidified soil sample is placed in the clamping mechanism 16 and fastened by adjusting the handle 6.
3. The horizontal driving motor 5 is controlled by the controller 12 to locate the disc type grinding head 3 right above the soil sample, and the vertical driving motor 1 is controlled to move the disc type grinding head 3 downward until contacting the soil sample surface.
4. The grinding head motor 2 is started by the controller 12 to enable the disc-type grinding head 3 to start rotating, and the sand paper fixed on the disc-type grinding head 3 polishes the surface of the soil sample.
5. After the disc-type grinding head 3 rotates for a fixed period of time (the period of time can be set in the controller 12), the controller 12 issues a control command to stop the grinding head motor 2 from rotating. The controller 12 then controls the horizontal drive motor 5 to move so that the vertical screw 4 moves a fixed distance to the right until the camera 11 is located directly above the soil sample (the moving distance can be set according to the size of the sample).
6. The controller 12 controls the ultraviolet light source 10 to emit light to irradiate the soil sample surface, and controls the camera 11 to take an image of the soil sample surface.
7. The controller 12 turns off the ultraviolet light source 10 and controls the horizontal driving motor 5 to reversely run, so that the grinding head motor 2 returns to the original position, namely, is positioned right above the soil sample.
8. The controller 12 controls the vertical driving motor 1 to move so that the disc type grinding head 3 descends to contact the soil sample surface again.
9. The operations of steps 4-8 are repeated, so that the soil sample is gradually ground in the micrometer scale until the whole sample is ground.
10. After each grinding, the soil sample image shot by the camera 11 can be processed by a conventional image processing technology to obtain the distribution condition of soil pores, and the structure of the soil pores can be obtained by integrating all the processed images.
Therefore, the automatic detection system for the soil pore structure information solves the problems of low detection precision of a dyeing tracing method, high detection cost of a CT scanning method, high cost of a slice detection method and low efficiency. Compared with the prior art, the invention has the characteristics of low cost, high automation degree and high detection precision, and can be widely used for detecting the pore structure of various culture matrixes (such as coconut coir, perlite, rock wool and the like) in soil and soilless culture.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (5)
1. An automatic detection system for soil pore structure information, which is characterized in that: including base, horizontal lead screw, vertical lead screw, fixture, horizontal lead screw set up in on the base, horizontal lead screw's one end and horizontal driving motor linkage, be provided with horizontal slip table on the horizontal lead screw, vertical lead screw's bottom with horizontal slip table rotates to be connected, fixture with horizontal lead screw places side by side, vertical lead screw's top and vertical driving motor linkage, be provided with vertical slip table on the vertical lead screw, be fixed with controller, camera, bistrique motor on the vertical slip table, fixed ultraviolet light source on the camera's the camera lens, be provided with the disc type bistrique on the output shaft of bistrique motor.
2. The automatic soil pore structure information detecting system according to claim 1, wherein: the one end of base is provided with the baffle, the end of horizontal lead screw with the baffle rotates to be connected, horizontal lead screw pass horizontal slip table and with horizontal slip table threaded connection, the bottom surface of horizontal slip table with the base contacts.
3. The automatic soil pore structure information detecting system according to claim 1, wherein: the clamping mechanism is arranged on the side face of the horizontal sliding table and comprises a fixed clamping block and a sliding clamping block, a vertical plate is arranged on one side of the base, the adjusting handle penetrates through the vertical plate and is in rotary connection with the sliding clamping block, and the adjusting handle is in threaded connection with the vertical plate.
4. The automatic soil pore structure information detecting system according to claim 1, wherein: the controller is fixed above the camera, the camera and the grinding head motor are respectively fixed on two sides of the vertical sliding table, and the lens and the disc type grinding head are both positioned above the clamping mechanism.
5. The automatic soil pore structure information detecting system according to claim 1, wherein: the controller is electrically connected with the camera, the ultraviolet light source, the vertical driving motor, the grinding head motor and the horizontal driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310021811.9A CN116223333A (en) | 2023-01-06 | 2023-01-06 | Automatic detection system for soil pore structure information |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310021811.9A CN116223333A (en) | 2023-01-06 | 2023-01-06 | Automatic detection system for soil pore structure information |
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| CN116223333A true CN116223333A (en) | 2023-06-06 |
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| CN202310021811.9A Pending CN116223333A (en) | 2023-01-06 | 2023-01-06 | Automatic detection system for soil pore structure information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309825A (en) * | 2023-11-30 | 2023-12-29 | 四川蜀道建筑科技有限公司 | Light-transmitting device for detecting methylene blue MB value |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0109234D0 (en) * | 2001-04-12 | 2001-05-30 | Feetham Nigel A | A simple porosity measuring device for building materials |
| US6630947B1 (en) * | 1996-04-10 | 2003-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for examining subsurface environments |
| CN104181089A (en) * | 2013-05-22 | 2014-12-03 | 中国石油化工股份有限公司 | Equipment for scanning facial porosity of rock and method thereof |
| KR101707440B1 (en) * | 2016-11-01 | 2017-02-20 | 한국지질자원연구원 | Method for porosity measurement using sem images of rock samples reacted with a gadolinium compond |
| CN107941673A (en) * | 2017-11-21 | 2018-04-20 | 南京农业大学 | A kind of salt affected soil pore structure measures analysis method |
| CN207336169U (en) * | 2017-10-12 | 2018-05-08 | 遵义师范学院 | A kind of soil split preparation device |
| CN108387495A (en) * | 2018-01-22 | 2018-08-10 | 青岛理工大学 | Porous concrete porosity calculation and pore parameter characterization method |
| CN110132796A (en) * | 2019-05-22 | 2019-08-16 | 中国石油大学(北京) | Shale Three-Dimensional contact angle and wetting heterogeneity evaluation system |
| CN111398273A (en) * | 2019-10-09 | 2020-07-10 | 天津大学 | Rock geometric-mechanical parameter acquisition method and holographic scanning system |
| CN217332180U (en) * | 2022-03-17 | 2022-08-30 | 北京理工大学重庆创新中心 | Novel full-automatic three-dimensional slicing platform |
-
2023
- 2023-01-06 CN CN202310021811.9A patent/CN116223333A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6630947B1 (en) * | 1996-04-10 | 2003-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for examining subsurface environments |
| GB0109234D0 (en) * | 2001-04-12 | 2001-05-30 | Feetham Nigel A | A simple porosity measuring device for building materials |
| CN104181089A (en) * | 2013-05-22 | 2014-12-03 | 中国石油化工股份有限公司 | Equipment for scanning facial porosity of rock and method thereof |
| KR101707440B1 (en) * | 2016-11-01 | 2017-02-20 | 한국지질자원연구원 | Method for porosity measurement using sem images of rock samples reacted with a gadolinium compond |
| CN207336169U (en) * | 2017-10-12 | 2018-05-08 | 遵义师范学院 | A kind of soil split preparation device |
| CN107941673A (en) * | 2017-11-21 | 2018-04-20 | 南京农业大学 | A kind of salt affected soil pore structure measures analysis method |
| CN108387495A (en) * | 2018-01-22 | 2018-08-10 | 青岛理工大学 | Porous concrete porosity calculation and pore parameter characterization method |
| CN110132796A (en) * | 2019-05-22 | 2019-08-16 | 中国石油大学(北京) | Shale Three-Dimensional contact angle and wetting heterogeneity evaluation system |
| CN111398273A (en) * | 2019-10-09 | 2020-07-10 | 天津大学 | Rock geometric-mechanical parameter acquisition method and holographic scanning system |
| CN217332180U (en) * | 2022-03-17 | 2022-08-30 | 北京理工大学重庆创新中心 | Novel full-automatic three-dimensional slicing platform |
Non-Patent Citations (1)
| Title |
|---|
| 左春柽, 马成林, 陈江南: "图像处理技术用于农机-土壤系统的研究", 农业工程学报, no. 1, pages 291 - 294 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309825A (en) * | 2023-11-30 | 2023-12-29 | 四川蜀道建筑科技有限公司 | Light-transmitting device for detecting methylene blue MB value |
| CN117309825B (en) * | 2023-11-30 | 2024-04-09 | 四川蜀道建筑科技有限公司 | Light-transmitting device for detecting methylene blue MB value |
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Application publication date: 20230606 |