CN109142170A - soil particle cleaning device - Google Patents
soil particle cleaning device Download PDFInfo
- Publication number
- CN109142170A CN109142170A CN201810968323.8A CN201810968323A CN109142170A CN 109142170 A CN109142170 A CN 109142170A CN 201810968323 A CN201810968323 A CN 201810968323A CN 109142170 A CN109142170 A CN 109142170A
- Authority
- CN
- China
- Prior art keywords
- cups
- net cylinder
- soil particle
- cleaning device
- particle cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002689 soil Substances 0.000 title claims abstract description 88
- 239000002245 particle Substances 0.000 title claims abstract description 75
- 238000004140 cleaning Methods 0.000 title claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 238000003760 magnetic stirring Methods 0.000 claims description 14
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 18
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000004458 analytical method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 19
- 239000000203 mixture Substances 0.000 description 11
- 238000005341 cation exchange Methods 0.000 description 9
- 239000000725 suspension Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 1
- 229960005147 calcium acetate Drugs 0.000 description 1
- 235000011092 calcium acetate Nutrition 0.000 description 1
- 239000001639 calcium acetate Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- ADNRGADCCSPMSK-UHFFFAOYSA-N diazanium;acetate;chloride Chemical compound [NH4+].[NH4+].[Cl-].CC([O-])=O ADNRGADCCSPMSK-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 210000001938 protoplast Anatomy 0.000 description 1
- 238000004856 soil analysis Methods 0.000 description 1
- 239000002881 soil fertilizer Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- G01N15/04—Investigating sedimentation of particle suspensions
Landscapes
- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of soil particle cleaning devices, comprising: a set of cups is used to accommodate cleaning solution, and a set of cups bottom is equipped with liquid outlet, is equipped with outlet tube at the liquid outlet；Net cylinder mechanism is set in a set of cups, and the net cylinder mechanism is arranged by multilayer net cylinder, and cavity is equipped between the net cylinder, and the aperture of adjacent inner layer net cylinder is less than positioned at the aperture of outer layer net cylinder；And rabbling mechanism, it is set in a set of cups, for stirring the cleaning solution in a set of cups.Soil particle of the invention cleans dispersal device, it cleans and disperses for soil particle, cleaning effect is good, cleaning efficiency is high, easy to operate, time saving and energy saving, avoid sample loss, guarantee the accurate of measurement result, for being related to the detection project of soil particle cleaning step, is suitable for batch pedotheque analysis detection.
Description
Technical field
The present invention relates to soil analysis instrument field, in particular to a kind of soil particle cleaning device.
Background technique
Currently, the detection project for being related to soil particle cleaning mainly has soil mechanical composition point in forestry scientific research
The measurement of analysis and Cation Exchange Capacity in Soils.
Soil mechanical composition analysis is the analysis of soil particle content, is the basis of soil texture research.Current measurement
When soil mechanical composition, dispersing agent is added in soil particle, is dispersed that treated that suspension pours into 60 mesh screens, by manually with band glue
The glass bar of set cleans soil particle, and the particle on sieve is cleaned multiple times, and washes out water and pours into settlement barrel, until washing out water without mud.
Particle on sieve, which is dried, to be weighed, and the granule content that partial size is greater than 0.25mm is measured.With pipette method after settlement barrel constant volume 1000mL
Or after granule content of the hydrometer method measurement partial size less than 0.05mm, then extrapolate the granule content of 0.25-0.05mm.Due to partial size
Big less than the particle of 0.05mm, sedimentation is fast, and error easily occurs in continuous mode, influences the accurate of the granule content of 0.25-0.05mm
Property.When artificial cleaning soil particle, water will repeatedly be washed out by, which needing, is transferred in settlement barrel, and transfer process easily causes soil particle to damage
It loses, reduces the accuracy of measurement result.The artificial portion soil particle that cleans about needs 15min, and personnel labor intensity is big, low efficiency.
Furthermore the soil mechanical composition measurement period is longer, and the sample size that a working day can be detected is limited, and current detection technique is difficult
To adapt to the detection and analysis of batch sample.
Cation Exchange Capacity in Soils includes water-disintegrable acid and exchangeable base, referred to as CEC, is commenting for soil fertilizer ability
Valence index, the main source of soil buffer performance are the important evidences for improveing soil and the rational application of fertilizer.Cation Exchange Capacity in Soils
Classical measuring method be ammonium acetate method, ammonium chloride-ammonium acetate method, calcium acetate method, be required in above method anti-with exchanger
Soil particle is cleaned again, promotes cation exchange abundant.It is current to replace manual operation without related cleaning device, claimed by artificial
It takes appropriate pedotheque to enter centrifuge tube, exchanger is added, stir soil particle 1-2min with glass bar, pour out supernatant after centrifugation
Liquid adds exchanger stirring and washing, repeatedly for several times, until supernatant is reacted without calcium ion.Then dehydrated alcohol is added,
It is reacted as above-mentioned cleaning method is cleaned repeatedly to no ammonium ion.Entire cleaning process is cumbersome time-consuming, cleans a sample used time at least
30min, efficiency are extremely low, it is difficult to carry out the cation exchange capacity measurements of batch sample.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of soil particle cleaning devices, and it is strong to reduce person works instead of manual operation
Degree.When measuring soil mechanical composition, soil particle is avoided to lose and artificial detection error, improves detection accuracy.In soil sun
In the continuous mode of ion exchange capacity, mixing time is easy to be uniformly controlled, and convenient for operation, detects efficiently and accurately.
To achieve the above object, the present invention provides a kind of soil particle cleaning devices, comprising: a set of cups is used to accommodate
Cleaning solution；Net cylinder mechanism is set in a set of cups, and the net cylinder mechanism includes at least one layer of net cylinder；And rabbling mechanism,
In a set of cups, for stirring the cleaning solution in a set of cups.
Preferably, in above-mentioned technical proposal, the net cylinder mechanism is arranged by the dismountable net cylinder of multilayer, the net cylinder
Between there are gap formed cavity, positioned at the aperture of outer layer net cylinder be less than adjacent inner layer net cylinder aperture.
Preferably, in above-mentioned technical proposal, the net cylinder mechanism is arranged by two layers of net cylinder, and the aperture of outer layer net cylinder is
0.05mm, the aperture of internal layer net cylinder are 0.25mm；Internal layer net cylinder bottom to a set of cups distance from bottom is less than a set of cups liquid level
1/2.
Preferably, in above-mentioned technical proposal, the mesh mechanism is removably hung in a set of cups.
Preferably, in above-mentioned technical proposal, the rabbling mechanism includes magnetic stirring apparatus and magnetic patch, the magnetic stirring apparatus
Bottom equipped with a set of cups, the magnetic patch are set to the bottom of the net cylinder mechanism, pass through the magnetic stirring apparatus and the magnetic
The mutual cooperation of block is to stir the liquid in a set of cups.
Preferably, in above-mentioned technical proposal, a set of cups bottom is equipped with liquid outlet, is equipped with outlet tube at the liquid outlet,
The outlet tube is equipped with switch.
Preferably, in above-mentioned technical proposal, the outlet end of the outlet tube corresponds to settlement barrel setting.
Preferably, in above-mentioned technical proposal, the soil particle cleaning dispersal device is more sets, is set in rack.
Preferably, in above-mentioned technical proposal, a set of cups is made of transparent material.
Preferably, in above-mentioned technical proposal, the volume of a set of cups is 30-200mL.
Compared with prior art, the invention has the following beneficial effects:
(1) soil particle cleaning device of the invention can be directly by the soil of different-grain diameter when cleaning to soil
It is sieved, eluate is introduced directly into settlement barrel, without the multiple artificial transfer of eluate, the loss of soil particle is avoided,
Advantageously ensure that the accurate of soil mechanical composition testing result, detection efficiency increases substantially.
(2) soil particle cleaning device of the invention, for soil particle cleaning dispersion, cleaning effect is good, cleaning efficiency
Height, it is easy to operate, it is time saving and energy saving, sample loss is avoided, guarantees the accurate of measurement result, the soil by machines suitable for batch sample
Composition analysis and Cation Exchange Capacity in Soils detection.
(3) soil particle cleaning dispersal device is more sets, can once handle multiple samples simultaneously, increases substantially detection effect
Rate.Detection and analysis suitable for batch sample.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of 1 soil particle cleaning device according to embodiments of the present invention.
Fig. 2 is the structural schematic diagram of 2 soil particle cleaning device according to embodiments of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
Embodiment 1
It is tested using the detection that soil particle cleaning device of the present invention does Cation Exchange Capacity in Soils.As shown in Figure 1, according to
A kind of soil particle cleaning device of the specific embodiment of the invention, soil particle cleaning device are equipped with 3, are arranged in rack
On.Each soil particle cleaning dispersal device cleans a kind of soil sample, is equipped with multiple cleaning devices (needed for needing to be arranged according to test
Cleaning device), can simultaneously multiple soil samples are cleaned.The cleaning of 3 samples, soil particle cleaning can be completed in 15min
Effect meets testing requirements, and the sample clean used time is reduced, and personnel labor intensity reduces.
Each soil particle cleaning device includes: a set of cups 1, net cylinder mechanism 2 and rabbling mechanism 3.A set of cups 1 is for accommodating cleaning
Liquid, net cylinder mechanism 2 are set in a set of cups 1, and rabbling mechanism 3 is used to stir the cleaning solution in a set of cups 1.It is specifically that a set of cups 1 is by transparent
Material is made, and the volume of a set of cups is 30-200mL.A set of cups 1 is for accommodating cleaning solution.Removably suspension is placed in set for net cylinder mechanism 2
In cup 1, net cylinder mechanism 2 is one layer of net cylinder, i.e. the aperture of a net cylinder, net cylinder is greater than or equal to 0.25mm.Rabbling mechanism 3
In a set of cups, for stirring the cleaning solution in a set of cups 1.
Preferably, rabbling mechanism 3 includes magnetic stirring apparatus 31 and magnetic patch 32, and magnetic patch 32 has gum cover.A set of cups 1 is arranged in magnetic
On power blender 31, magnetic patch 32 is placed in the bottom of net cylinder.Pass through the mutual cooperation of the magnetic stirring apparatus 31 and the magnetic patch 32
To stir the liquid in a set of cups 1.Liquid is stirred using magnetic stirring apparatus, so that soil particle dispersion cleaning is dry
Only.
During soil cation detection, the pre-treatment of pedotheque can use soil particle cleaning device of the present invention, operation
Process is as follows:
It weighs appropriate pedotheque to enter in a set of cups, exchanger is added, be put into the net cylinder that aperture is greater than or equal to 0.25mm, net
Middle addition magnetic patch, the magnetic patch 32 with gum cover are put into 21 bottom of net cylinder, open magnetic stirring apparatus 31 and switch, magnetic patch 32 is stirred in sieve bottom
Soil particle is mixed, the fluid eddies of generation make the rapid circular movement together of all suspension particles in a set of cups, in rotary motion
In the process, soil particle is constantly cleaned, promotes cation exchange sufficiently, guarantees that measurement result is accurate.It sets and is stirred on blender
To replace artificial stirring, stirring terminates, and takes out net cylinder and magnetic patch, pours out supernatant liquor.Protoplast's work cleaning operation is by this method
It carries out, this way can once the multiple samples of stirring and washing, detection efficiency improve more times simultaneously, and can guarantee that cation has exchanged
Entirely, measurement result is accurate, is suitable for batch sample cation detection.
Embodiment 2
It is tested using the detection that soil particle cleaning device of the present invention does soil mechanical composition analysis.As shown in Fig. 2, according to
A kind of soil particle cleaning device of the specific embodiment of the invention, soil particle cleaning device are equipped with 3, are arranged in rack
On.Each soil particle cleaning dispersal device cleans a kind of soil sample, is equipped with multiple cleaning devices (needed for needing to be arranged according to test
Cleaning device), can simultaneously multiple soil samples are cleaned.The cleaning of 3 samples, soil particle cleaning can be completed in 15min
Effect meets testing requirements, and the sample clean used time is reduced, and personnel labor intensity reduces.
Each soil particle cleaning device includes: a set of cups 1, net cylinder mechanism 2 and rabbling mechanism 3.A set of cups 1 is for accommodating cleaning
Liquid, net cylinder mechanism 2 are set in a set of cups 1, and rabbling mechanism 3 is used to stir the cleaning solution in a set of cups 1.It is specifically that a set of cups 1 is by transparent
Material is made, and the volume of a set of cups is 30-200mL.A set of cups 1 is equipped with liquid outlet, the liquid out for accommodating cleaning solution, a set of cups 1
Outlet tube 4 is equipped at mouthful.The outlet end of the outlet tube 4 corresponds to the setting of settlement barrel 5.Preferably, outlet tube 4 is equipped with switch
41.Removably suspension is placed in a set of cups 1 for net cylinder mechanism 2, and net cylinder mechanism 2 is arranged by two layers of net cylinder, i.e., by internal layer net cylinder
21 and outer layer net cylinder 22 form, internal layer net cylinder covers in outer layer net cylinder, is equipped with and exists between outer layer net cylinder 22 and internal layer net cylinder 21
Gap forms cavity.The aperture of internal layer net cylinder 21 is greater than the aperture of outer layer net cylinder 22.In the present embodiment, the aperture of outer layer net cylinder
For 0.05mm, the aperture of internal layer mesh is 0.25mm.Wherein, 21 bottom of internal layer net cylinder to 1 distance from bottom of a set of cups is less than a set of cups liquid
The 1/2 of position height, can guarantee that particle stirring and washing is more abundant.Rabbling mechanism 3 is set in a set of cups, for stirring in a set of cups 1
Cleaning solution.
Preferably, rabbling mechanism 3 includes magnetic stirring apparatus 31 and magnetic patch 32, and a set of cups 1 is arranged on magnetic stirring apparatus 31, magnetic patch
32 are placed in the bottom of internal layer net cylinder 21.By the mutual cooperation of the magnetic stirring apparatus 31 and the magnetic 32 to stir a set of cups
Liquid in 1.Liquid is stirred using magnetic stirring apparatus, so that different-grain diameter soil particle is separated and cleaned up.
The process for doing soil mechanical composition analysis experiment using soil particle cleaning device of the present invention is as follows:
The switch 41 on outlet tube 4 is closed, the suspension after vibrating dispersion pours into the interior net cylinder that mesh aperture is 0.25mm
On 21, the magnetic patch 32 with gum cover is put into interior 21 bottom of net cylinder, opens magnetic stirring apparatus 31 and switchs, magnetic patch 32 is at 0.25mm sieve bottom
Soil particle is stirred in portion, and the fluid eddies of generation make the rapid circular movement together of all suspension particles in a set of cups 1, rotating
In motion process, soil particle is constantly cleaned.Particle of the partial size greater than 0.25mm stays in internal layer net cylinder 21, and partial size is less than
The particle of 0.25mm is fallen into the outer layer net cylinder 22 of lower layer, and particle of the partial size between 0.25-0.05mm stays in outer net cylinder 22,
Particle of the partial size less than 0.05mm is fallen into a set of cups 1.The switch 41 on 1 bottom outlet tube 4 of a set of cups is opened, eluate flows into sedimentation
In cylinder 5.The switch 41 for closing outlet tube, adds water to continue to clean, is repeated several times, into a set of cups 1 until the bright no mud color of outflow water.
Weighing is respectively dried in the particle of 0.25-0.05mm in particle of the partial size greater than 0.25mm, partial size, can measure respectively each self-contained
Thus amount also show that partial size is less than the granule content of 0.05mm.This method is not settled fast interference by human factor and particle,
Measured result accurate stable.Suspension in settlement barrel 5 only need to be less than 0.02mm with hydrometer method or pipette method measurement partial size, be less than
Soil mechanical composition measurement can be completed in the particle of 0.002mm.Above-mentioned particle sinking speed slows down, and advantageously reduces measurement and misses
Difference.
Apparatus of the present invention are measured for soil mechanical composition analysis and Cation Exchange Capacity in Soils, soil particle cleaning point
It dissipating, cleaning effect is good, and cleaning efficiency is high, and it is easy to operate, it is time saving and energy saving, sample loss is avoided, guarantees the accurate of measurement result, is fitted
It is related to the analysis detection of the detection project of soil particle cleaning for batch sample.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of soil particle cleaning device characterized by comprising
A set of cups is used to accommodate cleaning solution；
Net cylinder mechanism is set in a set of cups, and the net cylinder mechanism includes at least one layer of net cylinder；And
Rabbling mechanism is set in a set of cups, for stirring the cleaning solution in a set of cups.
2. soil particle cleaning device according to claim 1, which is characterized in that the net cylinder mechanism is detachable by multilayer
Net cylinder be arranged, between the net cylinder there are gap formed cavity, positioned at the aperture of outer layer net cylinder be less than adjacent inner layer net
The aperture of cylinder.
3. soil particle cleaning device according to claim 2, which is characterized in that the net cylinder mechanism is by two layers of net cylinder set
If forming, the aperture of outer layer net cylinder is 0.05mm, and the aperture of internal layer net cylinder is 0.25mm；Internal layer net cylinder bottom is to covering bottom of a cup
Portion's distance is less than the 1/2 of a set of cups liquid level.
4. soil particle cleaning device according to claim 1, which is characterized in that the mesh mechanism is removably hung
In in a set of cups.
5. soil particle cleaning device according to claim 1, which is characterized in that the rabbling mechanism includes magnetic agitation
Device and magnetic patch, the magnetic stirring apparatus are equipped with the bottom of a set of cups, and the magnetic patch is set to the bottom of the net cylinder mechanism, passes through
The mutual cooperation of the magnetic stirring apparatus and the magnetic patch is to stir the liquid in a set of cups.
6. soil particle cleaning device according to claim 1, which is characterized in that a set of cups bottom is equipped with liquid outlet,
Outlet tube is equipped at the liquid outlet, the outlet tube is equipped with switch.
7. soil particle cleaning device according to claim 6, which is characterized in that the outlet end of the outlet tube is corresponding heavy
Cylinder setting is dropped.
8. soil particle cleaning device according to claim 1, which is characterized in that the soil particle cleans dispersal device
To cover, it is set in rack more.
9. soil particle cleaning device according to claim 1, which is characterized in that a set of cups is made of transparent material.
10. soil particle cleaning device according to claim 1, which is characterized in that the volume of a set of cups is 30-
200mL。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968323.8A CN109142170A (en) | 2018-08-23 | 2018-08-23 | soil particle cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968323.8A CN109142170A (en) | 2018-08-23 | 2018-08-23 | soil particle cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142170A true CN109142170A (en) | 2019-01-04 |
Family
ID=64791243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968323.8A Pending CN109142170A (en) | 2018-08-23 | 2018-08-23 | soil particle cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668807A (en) * | 2019-01-31 | 2019-04-23 | 广西壮族自治区环境监测中心站 | A kind of soil mechanical composition measurement system |
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