CN109297039A - Burning crop straws prepare plant cigarette water installations - Google Patents
Burning crop straws prepare plant cigarette water installations Download PDFInfo
- Publication number
- CN109297039A CN109297039A CN201811268239.1A CN201811268239A CN109297039A CN 109297039 A CN109297039 A CN 109297039A CN 201811268239 A CN201811268239 A CN 201811268239A CN 109297039 A CN109297039 A CN 109297039A
- Authority
- CN
- China
- Prior art keywords
- cigarette water
- burning
- collecting vessel
- water collecting
- smoking
- 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.)
- Granted
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000010902 straw Substances 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 230000000391 smoking effect Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000003818 cinder Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 17
- 239000005418 vegetable material Substances 0.000 claims description 13
- 238000001802 infusion Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000003915 air pollution Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- JUTMAMXOAOYKHT-UHFFFAOYSA-N 3-methylfuro[2,3-c]pyran-2-one Chemical compound C1=COC=C2OC(=O)C(C)=C21 JUTMAMXOAOYKHT-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- KJRRQXYWFQKJIP-UHFFFAOYSA-N 3-methylfuran Chemical compound CC=1C=COC=1 KJRRQXYWFQKJIP-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- -1 butylene lactone compound Chemical class 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000014284 seed dormancy process Effects 0.000 description 1
- 230000007226 seed germination Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N3/00—Preservation of plants or parts thereof, e.g. inhibiting evaporation, improvement of the appearance of leaves or protection against physical influences such as UV radiation using chemical compositions; Grafting wax
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
Abstract
Burning crop straws of the present invention prepare plant cigarette water installations, including burning bucket, further include smoking long tube, cigarette water collecting vessel, air blower；Smoking long tube one end is connected with burning bucket top, smoking long tube other end top is fixed with cigarette water collecting vessel top seal, cigarette water collection liquid is filled in cigarette water collecting vessel, the smoking long tube other end is deep into the cigarette water collection liquid of cigarette water collecting vessel, exhaust pipe is provided on cigarette water collecting vessel, exhaust pipe one end is connected with cigarette water collecting vessel, and the other end is connected with the input terminal of evacuator；By the technical program, burning crop straws can be closed to prepare cigarette water, to the filter effect of suspended particulate PM10, PM2.5, PM1.0 in cigarette more than 99%；Its structure is simple, low manufacture cost, has on the one hand expanded the effective way of straw utilization, reduces air pollution caused by crop straw burning；On the other hand also a large amount of cigarette water can be provided for the application such as revegetation, ecomanagement, preserving seed.
Description
Technical field
The present invention relates to a kind of productions to prepare plant cigarette wetting system, particularly relates to a kind of burning crop straws preparation plant
Cigarette water installations.
Background technique
The smog that burning plants generate can promote plant seed germination, burn in 2004 from cellulose or vegetable material
It is isolated in the cigarette of generation and the compound-Karrikinolide(3- methylfuran to play a crucial role and pyrans-is sprouted to seed
2- ketone belongs to butylene lactone compound), it is dissolved in water, to thermostabilization, sprouting can be effectively facilitated under extremely low concentration,
Especially Karrikinolide is highly effective for releasing seed dormancy, and sphere of action and the growth forms of plant, breeding
Strategy, seed size are unrelated；As a plant growth regulators, Karrikinolide is in revegetation, ecomanagement, kind
Quality guarantee is deposited, gardening and agricultural aspect have important application value.
Burning Straws generate a large amount of smog and graininess dust, are easy to make when especially the burning time compares concentration
Deteriorate at the atmospheric environment in some areas.Stalk, which is prohibited, to be burnt, and is the environmental protection measure of China's strict implement recent years, it is intended that reduction is burnt
Stalk bring air environmental pollution is burnt, however China's planting industry generates flood tide stalk every year, in addition to straw-returning, recycling benefit
With outside equal measures, it is also necessary to study other approaches and methods of straw utilization.
It there is no the device of quickly preparation plant cigarette water at present, research and development burning crop straws prepare the device of cigarette water, a side
The effective way of straw utilization has been expanded in face, reduces air pollution caused by crop straw burning；It on the other hand also can be extensive for vegetation
The application such as multiple, ecomanagement, preserving seed provides a large amount of plant cigarette water.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of burning crop straws to prepare plant cigarette water installations,
By the technical program, structure is simple, low manufacture cost；Burning crop straws can be closed to prepare cigarette water, in cigarette
The filter effect of suspended particulate PM10, PM2.5, PM1.0 are more than 99%；On the one hand the effective way for having expanded straw utilization, subtracts
Air pollution caused by crop straw burning is lacked；On the other hand it can also be provided for the application such as revegetation, ecomanagement, preserving seed
A large amount of cigarette water.
In order to achieve the above object, the technical scheme of the present invention is realized as follows: prepared by a kind of burning crop straws
Plant cigarette water installations, including burning bucket, further include smoking long tube, cigarette water collecting vessel, air blower；The burning bucket lower part and air blast
The outlet air end of machine is connected, and smoking long tube one end is connected with burning bucket top, and smoking long tube other end top and cigarette water are collected
Bucket top seal is fixed, and cigarette water collection liquid is filled in cigarette water collecting vessel, the smoking long tube other end is deep into cigarette water collecting vessel
In cigarette water collection liquid, cigarette water collecting vessel lower part is respectively arranged with fluid infusion leakage fluid dram, is respectively arranged with section door on fluid infusion leakage fluid dram,
Exhaust pipe is provided on cigarette water collecting vessel, described exhaust pipe one end is connected with cigarette water collecting vessel, the other end and evacuator
Input terminal is connected.
It further include cinder catcher and air duct as further technical solution, the burning bucket is cylindrical body, bucket bottom of burning
Portion be it is closed, burning bucket bottom center be provided with for air port, the cinder catcher be the shape of falling helmet, cinder catcher setting burn bucket in
Lower part is provided with grate on cinder catcher, is provided with smoking hole at the top of burning bucket, and the smoking long tube is connected with smoking hole,
It is respectively arranged with fire hole on burning barrel side wall and loads vegetable material aperture of door, on fire hole and filling vegetable material aperture of door respectively
Be provided with igniting capping and aperture of door sealing plate, described air duct one end through for air port extend into burning bucket bottom cinder catcher in,
The air outlet of air duct is located at upwards below grate, and the other end of air duct is connected with air blower output end.
As further technical solution, the burning bucket diameter is 580mm, a height of 880mm；Cinder catcher height is
120mm, cinder catcher diameter match with burning bucket diameter；The igniting bore dia is 50mm, is located at away from burning bucket bottom 140mm
Place；The length of the filling vegetable material aperture of door is 300mm, width 180mm, and filling vegetable material aperture of door upper limb is away from burning bucket top
Portion is 270mm；The diameter in the smoking hole, smoking long tube and air duct is respectively 50mm.
As further technical solution, the long length of tube of smoking is greater than 6M.
Beneficial effect after by adopting the above technical scheme is: a kind of burning crop straws preparation plant cigarette water installations are led to
The technical program is crossed, burning crop straws can be closed to prepare cigarette water, to suspended particulate PM10, PM2.5, PM1.0 in cigarette
Filter effect more than 99%；Its structure is simple, low manufacture cost, has on the one hand expanded the effective way of straw utilization, reduces
Air pollution caused by crop straw burning；On the other hand it can also be provided for the application such as revegetation, ecomanagement, preserving seed big
Measure cigarette water.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
In figure, 1 burning bucket, 2 smoking long tubes, 3 first cigarette water collecting vessels, 4 second cigarette water collecting vessels, 5 air blowers, 6 cigarette water
Collection liquid, 7 fluid infusion leakage fluid drams, 8 section doors, 9 downtake pipes, 10 second exhaust pipes, 11 evacuators, 12 cinder catchers, 13 air feeds
Pipe, 14 are sealed for air port, 15 grates, 16 smoking holes, 17 fire holes, 18 filling vegetable material aperture of doors, 19 igniting cappings, 20 aperture of doors
Plate.
Specific embodiment
Specific embodiment in the present invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, burning crop straws of the present invention prepare plant cigarette water installations, including burning bucket 1, also wrap
Include smoking long tube 2, the first cigarette water collecting vessel 3, the second cigarette water collecting vessel 4, air blower 5；1 lower part of burning bucket and air blower 5
Outlet air end be connected, described 2 one end of smoking long tube is connected with burning 1 top of bucket, 2 other end top of smoking long tube and the first cigarette water
3 top seal of collecting vessel is fixed, and the first cigarette water collecting vessel 3 and the second cigarette water collecting vessel 4 are connected in series, the first cigarette water collecting vessel
3 and second are filled with cigarette water collection liquid 6 in cigarette water collecting vessel 4 respectively, and 2 other end of smoking long tube is deep into the first cigarette water collecting vessel
In 3 cigarette water collection liquid 6, the first cigarette water collecting vessel 3 and 4 lower part of the second cigarette water collecting vessel are respectively arranged with fluid infusion leakage fluid dram 7,
It is respectively arranged with section door 8 on fluid infusion leakage fluid dram 7, is provided with downtake pipe 9, the first exhaust on the first cigarette water collecting vessel 3
9 one end of pipe is connected with the first cigarette water collecting vessel 3,9 other end top of downtake pipe and 4 top seal of the second cigarette water collecting vessel
Fixed, 9 other end of downtake pipe is deep into the cigarette water collection liquid 6 of the second cigarette water collecting vessel 4, on the second cigarette water collecting vessel 4
It is provided with second exhaust pipe 10,10 one end of second exhaust pipe is connected with the second cigarette water collecting vessel 4,10 other end of second exhaust pipe
It is connected with the input terminal of evacuator 11.
Further include cinder catcher 12 and air duct 13, the burning bucket 1 is cylindrical body, burning 1 bottom of bucket be it is closed, burning
1 bottom center of bucket is provided with for air port 14, and the cinder catcher 12 is the shape of falling helmet, and the lower part in burning bucket 1 is arranged in cinder catcher 12,
It is provided with grate 15 on cinder catcher 12, is provided with smoking hole 16, the smoking long tube 2 and 16 phase of smoking hole at the top of burning bucket 1
Even, fire hole 17 and filling vegetable material aperture of door 18, fire hole 17 and filling vegetable material are respectively arranged on burning 1 side wall of bucket
Igniting capping 19 and aperture of door sealing plate 20 are respectively arranged on aperture of door 18, described 13 one end of air duct is through extending into combustion for air port 14
In the cinder catcher 12 for burning 1 bottom of bucket, the air outlet of air duct 13 is located at 15 lower section of grate, the other end and drum of air duct 13 upwards
5 output end of blower is connected.
1 diameter of burning bucket is 580mm, a height of 880mm；12 height of cinder catcher is 120mm, 12 diameter of cinder catcher and combustion
1 diameter of bucket is burnt to match；17 diameter of fire hole is 50mm, is located at away from burning 1 bottom 140mm of bucket；The filling plant
The length of material aperture of door 18 be 300mm, width 180mm, filling 18 upper limb of vegetable material aperture of door away from burning bucket 1 at the top of be 270mm；
The diameter in the smoking hole 16, smoking long tube 2 and air duct 13 is respectively 50mm.
2 length of smoking long tube is greater than 6M.
The present invention at work, pulls open aperture of door sealing plate 20, and the vegetable materials such as agricultural crop straw are passed through filling plant material
Bin gate hole 18 is packed into agricultural crop straw to burning bucket 1, and will be filled up above the grate for the bucket 1 that burns；Close aperture of door sealing plate 20；
Cigarette water collection liquid is tap water, opens the section door on the first cigarette water collecting vessel 3 and the second cigarette water collecting vessel 4 on fluid infusion leakage fluid dram 7
8, plastic flexible pipe is connected, the first cigarette water collecting vessel 3 and the second cigarette water collecting vessel 4 are poured into and account for inner space 70% and 50% respectively
Tap water closes section door 8；Air blower 5 and evacuator 11 are powered on, turned on the power switch, igniting capping 19 is screwed off,
Agricultural crop straw is lighted at fire hole 17, then screws on igniting capping 19, to the agricultural crop straw afterburnt, closes 5 He of air blower
Evacuator 11 opens fluid infusion drain on the first cigarette water collecting vessel 3 and the second cigarette water collecting vessel 4 after cigarette water collection liquid 6 is cooling
Cigarette water collection liquid 6 is discharged into container in section door 8 at mouth 7, prepares the completion of cigarette water.
In the technical program, it is the temperature in order to reduce cigarette that the long length of tube of smoking, which is greater than 6m, to meet preparation plant
The needs of cigarette water.
The above, preferable possible embodiments only of the invention, the protection scope being not intended to limit the invention.
Claims (4)
1. a kind of burning crop straws prepare plant cigarette water installations, including burning bucket, which is characterized in that further include length of smoking
Pipe, cigarette water collecting vessel, air blower；The burning bucket lower part is connected with the outlet air end of air blower, smoking long tube one end and combustion
It burns bucket top to be connected, smoking long tube other end top is fixed with cigarette water collecting vessel top seal, is filled with cigarette in cigarette water collecting vessel
Water collection liquid, the smoking long tube other end are deep into the cigarette water collection liquid of cigarette water collecting vessel, and cigarette water collecting vessel lower part is respectively set
There is fluid infusion leakage fluid dram, section door is respectively arranged on fluid infusion leakage fluid dram, exhaust pipe, the exhaust pipe are provided on cigarette water collecting vessel
One end is connected with cigarette water collecting vessel, and the other end is connected with the input terminal of evacuator.
2. burning crop straws according to claim 1 prepare plant cigarette water installations, which is characterized in that further include collection ash
Device and air duct, the burning bucket be cylindrical body, burning bucket bottom be it is closed, burning bucket bottom center be provided with for air port,
The cinder catcher is the shape of falling helmet, and cinder catcher setting lower part in burning bucket is provided with grate, at the top of burning bucket on cinder catcher
It is provided with smoking hole, the smoking long tube is connected with smoking hole, and fire hole and filling plant are respectively arranged on the barrel side wall that burns
Igniting capping and aperture of door sealing plate, the air duct are respectively arranged on material aperture of door, fire hole and filling vegetable material aperture of door
One end for air port through extending into the cinder catcher of burning bucket bottom, and the air outlet of air duct is located at upwards below grate, air duct
The other end be connected with air blower output end.
3. burning crop straws according to claim 2 prepare plant cigarette water installations, which is characterized in that the burning bucket
Diameter is 580mm, a height of 880mm；Cinder catcher height is 120mm, and cinder catcher diameter matches with burning bucket diameter；The igniting
Bore dia is 50mm, is located at away from burning bucket bottom 140mm；The length of the filling vegetable material aperture of door is 300mm, and width is
180mm, filling vegetable material aperture of door upper limb are 270mm away from burning bucket top；The smoking hole, smoking long tube and air duct it is straight
Diameter is respectively 50mm.
4. burning crop straws according to claim 1 prepare plant cigarette water installations, which is characterized in that the smoking length
Length of tube is greater than 6M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811268239.1A CN109297039B (en) | 2018-10-29 | 2018-10-29 | Device for preparing plant tobacco water by burning crop straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811268239.1A CN109297039B (en) | 2018-10-29 | 2018-10-29 | Device for preparing plant tobacco water by burning crop straw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109297039A true CN109297039A (en) | 2019-02-01 |
| CN109297039B CN109297039B (en) | 2024-04-19 |
Family
ID=65158799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811268239.1A Active CN109297039B (en) | 2018-10-29 | 2018-10-29 | Device for preparing plant tobacco water by burning crop straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109297039B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845449A (en) * | 2019-03-21 | 2019-06-07 | 山东农业大学 | A kind of cigarette water preparation apparatus and method for Seed Germination Test |
| CN114651836A (en) * | 2022-04-08 | 2022-06-24 | 山东农业大学 | Preparation method and application of straw-source tobacco water |
| CN114793533A (en) * | 2022-05-25 | 2022-07-29 | 甘肃省祁连山水源涵养林研究院 | Method for improving emergence rate of seedlings of sabina przewalskii seeds |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2356507A1 (en) * | 1973-11-13 | 1975-05-15 | Gerhard Steen | Transportable grateless straw incinerator - has conical combustion chamber with tangential fuel and air inlet at base |
| US4308034A (en) * | 1980-05-19 | 1981-12-29 | Hoang Dinh C | Apparatus for incinerating and gasifying biomass material |
| US5044932A (en) * | 1989-10-19 | 1991-09-03 | It-Mcgill Pollution Control Systems, Inc. | Nitrogen oxide control using internally recirculated flue gas |
| KR200327495Y1 (en) * | 2003-07-01 | 2003-09-19 | 김완수 | Incinerator for waste matter of no chimney |
| WO2015122794A1 (en) * | 2014-02-17 | 2015-08-20 | Леонид Иванович МАЛЬЦЕВ | Device for combusting coal-water fuel (variants) |
| CN209116355U (en) * | 2018-10-29 | 2019-07-16 | 湖北省农业科学院植保土肥研究所 | Burning crop straws prepare plant cigarette water installations |
-
2018
- 2018-10-29 CN CN201811268239.1A patent/CN109297039B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2356507A1 (en) * | 1973-11-13 | 1975-05-15 | Gerhard Steen | Transportable grateless straw incinerator - has conical combustion chamber with tangential fuel and air inlet at base |
| US4308034A (en) * | 1980-05-19 | 1981-12-29 | Hoang Dinh C | Apparatus for incinerating and gasifying biomass material |
| US5044932A (en) * | 1989-10-19 | 1991-09-03 | It-Mcgill Pollution Control Systems, Inc. | Nitrogen oxide control using internally recirculated flue gas |
| KR200327495Y1 (en) * | 2003-07-01 | 2003-09-19 | 김완수 | Incinerator for waste matter of no chimney |
| WO2015122794A1 (en) * | 2014-02-17 | 2015-08-20 | Леонид Иванович МАЛЬЦЕВ | Device for combusting coal-water fuel (variants) |
| CN209116355U (en) * | 2018-10-29 | 2019-07-16 | 湖北省农业科学院植保土肥研究所 | Burning crop straws prepare plant cigarette water installations |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845449A (en) * | 2019-03-21 | 2019-06-07 | 山东农业大学 | A kind of cigarette water preparation apparatus and method for Seed Germination Test |
| CN114651836A (en) * | 2022-04-08 | 2022-06-24 | 山东农业大学 | Preparation method and application of straw-source tobacco water |
| CN114793533A (en) * | 2022-05-25 | 2022-07-29 | 甘肃省祁连山水源涵养林研究院 | Method for improving emergence rate of seedlings of sabina przewalskii seeds |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109297039B (en) | 2024-04-19 |
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Country or region after: China Address after: No.18 Nanhu Avenue, Hongshan District, Wuhan City, Hubei Province 430064 Applicant after: INSTITUTE FOR PLANT PROTECTION AND SOIL SCIENCE, HUBEI ACADEMY OF AGRICULTURAL SCIENCES Address before: 430064 No. 6, Nanhu Avenue, Hongshan District, Wuhan City, Hubei Province Applicant before: INSTITUTE FOR PLANT PROTECTION AND SOIL SCIENCE, HUBEI ACADEMY OF AGRICULTURAL SCIENCES Country or region before: China |
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