CN110169277B - A kind of method of covering top of tobacco plant - Google Patents
A kind of method of covering top of tobacco plant Download PDFInfo
- Publication number
- CN110169277B CN110169277B CN201910286134.7A CN201910286134A CN110169277B CN 110169277 B CN110169277 B CN 110169277B CN 201910286134 A CN201910286134 A CN 201910286134A CN 110169277 B CN110169277 B CN 110169277B
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- plastic bag
- magnetorheological elastomer
- length
- tobacco plant
- opening
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 67
- 244000061176 Nicotiana tabacum Species 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 91
- 229920003023 plastic Polymers 0.000 claims abstract description 91
- 229920001971 elastomer Polymers 0.000 claims abstract description 31
- 239000000806 elastomer Substances 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 230000008635 plant growth Effects 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 description 16
- 241000196324 Embryophyta Species 0.000 description 7
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 206010048038 Wound infection Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/45—Tobacco
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Toys (AREA)
Abstract
一种烟株套顶的方法涉及烟株生长调控领域。塑料袋下端开口，塑料袋下端开口向上分开形成有一道竖直方向的缝隙，缝隙的竖直方向长度为塑料袋长度的1/3，缝隙顶部两侧在水平方向重叠5‑8cm的宽度；将塑料袋套在烟株顶部，缝隙顶部与烟株顶部向下的3‑5片叶片平齐；塑料袋的开口端竖直方向宽度6mm‑8mm为磁流变弹性体，长度沿塑料袋开口，磁流变弹性体厚度为0.1‑0.2mm，磁流变弹性体的水平方向中间有长度6‑10mm、厚度1mm、高度与磁流变弹性体等高的永久磁铁一片；磁铁与铁粉的相互吸引实现塑料袋下端开口的稳固。有益效果：方便塑料袋的套入；有利于塑料袋的密封性，提高塑料袋封口速度。
A method for topping tobacco plants relates to the field of tobacco plant growth regulation. The lower end of the plastic bag is opened, and the lower end of the plastic bag is opened upward to form a vertical slit. The vertical length of the slit is 1/3 of the length of the plastic bag, and both sides of the top of the slit overlap by a width of 5-8cm in the horizontal direction; The plastic bag is placed on the top of the tobacco plant, and the top of the gap is flush with the 3-5 leaves downward from the top of the tobacco plant; the vertical width of the open end of the plastic bag is 6 mm-8 mm, which is a magnetorheological elastomer, and the length is along the opening of the plastic bag. The thickness of the magnetorheological elastomer is 0.1‑0.2mm, and there is a permanent magnet with a length of 6‑10mm, a thickness of 1mm, and a height equal to that of the magnetorheological elastomer in the horizontal direction of the magnetorheological elastomer. The suction achieves the stability of the lower end opening of the plastic bag. Beneficial effects: it is convenient to insert the plastic bag; it is beneficial to the sealing performance of the plastic bag, and the sealing speed of the plastic bag is improved.
Description
Technical Field
The invention relates to the field of tobacco plant growth regulation, in particular to the aspect of weakening the top advantage of a flue-cured tobacco plant.
Background
The invention discloses a flue-cured tobacco field management method for improving the quality of upper tobacco leaves, and records that a bagging technology is adopted
All inflorescences and 3-5 small leaves on the upper part are survived by utilizing the conditions of high temperature, high humidity and no light in the bag, the problems of wound infection and virus invasion, reduction of the quality safety of tobacco leaves and increase of the cost of flue-cured tobacco caused in the topping and branch removing process can be solved, and the adopted bag is a black film plastic bag or a blue film plastic bag.
The paper "influence of capping on the maturity of upper leaves of flue-cured tobacco and the quality of flue-cured tobacco leaves" (2017, 48 (11): 1976-1982, southern agriculture bulletin) states that flue-cured tobacco variety K326, the plastic bag is a blue polyethylene film bag (black plastic bag is also used), the specification of the plastic bag is 50cm long, 30cm wide and 0.018mm thick (0.02 mm thick is also used), and the cost is approximately 0.06 yuan per plastic bag. The row spacing is 110cm, the plant spacing is 50cm, and 18 leaves are left for each plant (the bottom leaves and part of the top leaves are generally removed, and the leaves in the middle part are left). As can be seen from this document, the diameter of the cap portion at the top of the tobacco plant is 20cm or less (the plastic bag has a width of 30cm and a circumference of 60cm, and the diameter of the opening of the plastic bag is less than 20cm but close to 20cm, and the plastic bag occupies a part of the length of the plastic bag because the plastic bag is tied and fixed at the mouth of the plastic bag, so the plant height of the cap portion is 30-40 cm).
Research on the research effect of the flue-cured tobacco bagging non-topping technology (authors are Chensong, Zhangang and Li Ling) describes that the bagging time is 3-5 days after the central flower of a tobacco plant is opened, and the bagging method is that all inflorescences and 3-4 small leaves which are close to the inflorescences are sleeved with plastic bags and the bag openings are fastened properly.
The flue-cured tobacco is inquired in a network, and the cultivation suggestions are found as follows: the row spacing of the flue-cured tobacco is 110-130cm, and the plant spacing is 45-55 cm; the depth of the groove between the rows is 18-20 cm; the interval between the tobacco leaves at the stem part is approximately about 4.5-5.5cm (the difference exists according to the variety and the growth vigor); the tobacco leaves just growing out at the top are closer to the vertical direction (the paper records that the tobacco leaves are approximately 20 degrees, namely the included angle between the tobacco leaves and the stem in the vertical upward direction is about 20 degrees), the growing tobacco leaves are gradually leveled or slightly inclined downwards under the action of gravity, the topping is mainly concentrated on 3-5 tender leaves at the top of the tobacco plant, and the diameter of the 3-5 tender leaves is expanded to about 20 cm; the height of the tobacco plant is 100-150 cm, the height of the tobacco plant with buds is relatively close to 120-160cm (estimated by referring to the height of a person, and the depth of a ditch between rows is considered to be 18-20cm), the person does not need to bend during the topping process from the height of the tobacco plant, namely the person is basically upright (the arm length of the person is about 70cm, the height of 160cm and the height of the shoulder position is about 140cm, so that the person can stand up at 140-70-140 +70, namely 70-210 cm, the length of the palm is considered to be 15-20cm, so that the person can stand up relatively freely within the range of 90-190cm of the tobacco plant height, and the range of 90-190cm already covers all types of tobacco plant height).
Under the principle that the bagging weakens the top advantages of tobacco plants, the time for topping is generally considered to be the best when buds appear, so the best topping time is shorter, the topping speed is required to be faster, and the cultivation row spacing of the flue-cured tobacco plants is suitable for people to pass through, so the tobacco plants on one side or two sides can be topped by advancing along the gully between rows.
The time is required for opening the plastic bag (the plastic bag with the inner surfaces attached together is inflated and separated into a spherical container), and sleeving and knotting binding, and particularly, the time spent for opening the plastic bag and knotting binding is neglectable relative to the sleeving time of the bag; in order to improve the speed of bagging, people consider that an elastic ring is arranged at the opening end of a plastic bag, and after the elastic ring is arranged, the elastic ring is bound and fixed by virtue of the contraction of an elastic band; although tying by knots is not needed, the fingers of a common person are mostly about 15cm after being unfolded, so that the rubber band is very difficult to be unfolded to 20cm (the diameter of the unfolded top leaves of 3-5 tobacco plants is about 20 cm); therefore, it is further thought that by machine bagging (topping), since the tobacco plant is relatively high and therefore the machine is higher than the tobacco plant by at least one plastic bag height, it is necessary to place the machine overhead, there are differences in the height of each tobacco plant, differences in the height of each individual who operates, differences in the degree of erection for each operation, and therefore there is a need to position the open end of the plastic bag outside the 3-5 young leaves of the top of the tobacco plant for each topping, resulting in no advantage in the speed of bagging over human bagging (the only advantage is that the opening of the plastic bag can be designed to be 20cm or more in size).
Disclosure of Invention
Because the speed of the top of the sleeve is not greatly different between people and machinery, and the control aspect of the opening end of the plastic bag is mainly different, the method for sealing the plastic bag more easily is designed, and the difference between the manpower and the machinery can be weakened. The invention designs a method for jacketing tobacco plants.
The invention adopts the technical scheme that the purpose of the invention is realized by: a method for capping tobacco plants comprises a black plastic bag with an opening at the lower end, and is characterized in that: an opening at the lower end of the plastic bag is upwards separated to form a vertical gap, the vertical length of the gap is 1/3 of the length of the plastic bag, and two sides of the top of the gap are overlapped in the horizontal direction by 5-8 cm; sleeving the plastic bag on the top of the tobacco plant, wherein the top of the gap is flush with 3-5 downward leaves on the top of the tobacco plant; the width of the opening end of the plastic bag in the vertical direction is 6mm-8mm, the length of the opening end of the plastic bag is equal to the length of the opening of the plastic bag, namely the length of the opening end of the plastic bag, the thickness of the magnetorheological elastomer is 0.1-0.2mm, and the middle of the magnetorheological elastomer in the horizontal direction is provided with a permanent magnet piece with the length of 6-10mm, the thickness of 1mm, the height of the permanent magnet piece is equal to the height of the magnetorheological elastomer; the left side of the plastic bag is extruded on the main stem of the tobacco plant, the right side of the plastic bag is wound on the outer side of the tobacco plant, and the opening at the lower end of the plastic bag is stable by means of mutual attraction of the permanent magnet and the iron powder in the magnetorheological elastomer.
The magnetorheological elastomer is a mixture of plastic and iron powder, wherein the mass ratio of the plastic to the iron powder is 1: 1. the magnetic induction intensity of the surface of the permanent magnet magnetic pole is 4000GS, and the direction of the magnetic field is vertical to the trunk of the tobacco plant.
The invention has the beneficial effects that: an opening at the lower end of the plastic bag is upwards separated to form a vertical gap, so that the plastic bag can be conveniently sleeved; the two sides of the top of the gap are overlapped in the horizontal direction by 5-8cm, which is beneficial to the sealing performance of the plastic bag; the combination of the magnetic field and the magnetorheological elastomer is beneficial to greatly improving the closing speed of the opening of the plastic bag (greatly improving the sealing speed of the plastic bag). An interaction force exists between the permanent magnet and the magnetorheological elastomer, and the permanent magnet and the magnetorheological elastomer are opposite to each other due to the vertical displacement capacity; the magnet is changed into the magnet with the thickness of 1mm, the width of 2-3mm and the vertical direction of 18-30mm, and the relative displacement between the permanent magnet and the magnetorheological elastomer in the vertical direction is reduced because the width of the permanent magnet in the vertical direction is 3 times that of the magnetorheological elastomer.
Drawings
FIG. 1 is a schematic view of a plastic bag used in the method of topping tobacco plants;
wherein, 1, plastic bag; 2. the top of the gap; 3. a magnetorheological elastomer; 4. a permanent magnet.
Detailed Description
The size and material of the plastic bag 1 and the color and shade of the color are all within the scope of the prior art. The present invention relates only to the shape configuration and the method of use of the plastic bag 1.
A method for jacketing tobacco plants comprises a black plastic bag 1, wherein the lower end of the plastic bag 1 is opened, and is characterized in that: the lower end opening of the plastic bag 1 is separated upwards (a triangle is cut or removed), namely a gap is formed, the length of the gap in the vertical direction (the length in the vertical direction refers to the cutting height for cutting, and the height of the bottom edge in the horizontal direction for cutting the triangle) is 1/3 (the height of the existing plastic bag is 50cm, the height of the gap is 16-17 cm), and the width of the two sides (plastic) of the top 2 of the gap is overlapped by 5-8cm in the horizontal direction (namely the width of the plastic on the two sides of the top 2 of the gap is 5-8cm, namely the plastic on the two sides of the top 2 of the gap is double-layer); sleeving the plastic bag 1 on the top of the tobacco plant (because the opening of the plastic bag 1 is cut, the circumference of the position of the gap top 2 is only required to be larger than the maximum circumference of the position required to cover the top of the tobacco plant), and the gap top 2 is flush with 3-5 blades downwards at the top of the tobacco plant (namely different specifications are provided, one is flush with a third blade downwards at the top of the plant, the other is flush with a fourth blade downwards at the top of the plant, and the other is flush with a fifth blade downwards at the top of the plant); the width of the opening end of the plastic bag 1 in the vertical direction is 6mm-8mm, the magnetorheological elastomer 3 is a mixture of plastic and iron powder, the mass ratio of the plastic to the iron powder is 1: 1, which is equivalent to the volume ratio of the plastic to the iron powder is about 7: 1, the length of the magnetorheological elastomer 3 along the opening of the plastic bag 1 is equal to the length of the opening of the plastic bag 1, the thickness of the magnetorheological elastomer 3 is 0.1-0.2mm, the middle part of the magnetorheological elastomer 3 (the position approximately 1/2 in the left-right direction does not need a strict accurate position, namely the position approximately in the middle position, because the length of the 5 th leaf of a tobacco plant from the top is approximately 10cm, namely the diameter is 20cm, the diameter of the opening of the plastic bag 1 in the prior art is generally about 20cm, the circumference of the plastic bag 1 in which the gap top 2 of the invention is 65cm (3.14 x 20 is approximately equal to 65), namely the same as the prior art, the opening at the lower end of the tobacco plant can be smaller, for example, the width is 20cm (namely the bottom edge of the cut triangle is 65-20=45cm, the height is 1/3 of the height of the plastic bag 1), the diameter of the main stem of the tobacco plant is approximately 3cm when the 5 th leaf counted from top to bottom is located, the circumference is 10cm, the width is 20, the tobacco plant can wrap the main stem for 2 circles, and for the width of 20cm, the middle position is in the range of 9-11 cm), and the permanent magnet 4 with the length of 6-10mm and the height equal to the height of the magnetorheological elastomer 3 is arranged; the left side of the plastic bag 1 is extruded on the stem (trunk) of the tobacco plant (same as the binding position of the existing sleeve bag), the right side of the plastic bag 1 is wound on the outer side of the tobacco plant, and the opening at the lower end of the plastic bag 1 is stable (i.e. is not scattered) by means of mutual attraction of the permanent magnet 4 and the iron powder in the magnetorheological elastomer 3.
The above description is merely for convenience of understanding, and is not necessarily a process such as the generation of a slit of the plastic bag 1, which can be formed at one time by a factory, and does not require a tobacco grower to cut off a portion of the plastic bag to form a slit; for the selection and thickness of the magnetic field intensity of the permanent magnet 4, a smoker can select ferrite or Ru ferroboron and the thickness of the permanent magnet block according to the required stable intensity (after the interaction force of the permanent magnet 4 and the iron powder in the magnetorheological elastomer 3 is calculated), the working mechanism is only expressed here, the prior art can perform corresponding calculation and selection according to the requirement of the smoker, and the prior art can realize the selection and selection without detailed arrangement; as can be seen from the prior art, for example, the writing case has a cover fixed by a permanent magnet 4, the width of the magnetic pole is approximately 1mm, the length is approximately 20mm, and the height is not more than 10mm, so that the permanent magnet of Ru Feibong 4000GS (Gauss), the thickness is 1mm, the length is 10mm, and the width is 2-3mm is recommended to be enough to be used, and the cost is approximately 0.02 yuan according to the selling price of the Kyoto.
Claims (4)
1. The method for topping tobacco plants comprises a black or blue plastic bag (1), wherein the lower end of the plastic bag (1) is opened, and is characterized in that: an opening at the lower end of the plastic bag (1) is upwards separated to form a vertical gap, the vertical length of the gap is 1/3 of the length of the plastic bag (1), and the two sides of the top (2) of the gap are overlapped in the horizontal direction by the width of 5-8 cm; sleeving the plastic bag (1) on the top of the tobacco plant, wherein the top (2) of the gap is flush with 3-5 downward leaves on the top of the tobacco plant; the width of the opening end of the plastic bag (1) in the vertical direction is 6mm-8mm, the magnetorheological elastomer (3) is arranged, the length of the opening end of the plastic bag (1) is along the opening of the plastic bag (1), namely the length of the magnetorheological elastomer is equal to the length of the opening of the plastic bag (1), the width of the magnetorheological elastomer is 6mm-8mm, the thickness of the magnetorheological elastomer (3) is 0.1-0.2mm, and the middle of the magnetorheological elastomer (3) in the horizontal direction is provided with a permanent magnet (4) with the width of 6-10mm, the thickness of 1mm and the height equal to the height of the magnetorheological elastomer (3); the left side of the plastic bag (1) is extruded on the stem of the tobacco plant, the right side of the plastic bag (1) is wound on the outer side of the tobacco plant, and the opening at the lower end of the plastic bag (1) is stable by means of mutual attraction of the permanent magnet (4) and the iron powder in the magnetorheological elastomer (3).
2. The method for topping tobacco plants according to claim 1, wherein: the magnetorheological elastomer (3) is a mixture of plastic and iron powder, wherein the mass ratio of the plastic to the iron powder is 1: 1.
3. the method for topping tobacco plants according to claim 1, wherein: the magnetic induction intensity of the magnetic pole surface of the permanent magnet (4) is 4000GS, and the direction of the magnetic field is vertical to the trunk of the tobacco plant.
4. The method for topping tobacco plants according to claim 1, wherein: the shape of the permanent magnet (4) is changed into the thickness of 1mm, the width of 2-3mm and the vertical direction of 18-30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910286134.7A CN110169277B (en) | 2019-04-10 | 2019-04-10 | A kind of method of covering top of tobacco plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910286134.7A CN110169277B (en) | 2019-04-10 | 2019-04-10 | A kind of method of covering top of tobacco plant |
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| Publication Number | Publication Date |
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| CN110169277A CN110169277A (en) | 2019-08-27 |
| CN110169277B true CN110169277B (en) | 2021-07-23 |
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| CN201910286134.7A Expired - Fee Related CN110169277B (en) | 2019-04-10 | 2019-04-10 | A kind of method of covering top of tobacco plant |
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| CN206713630U (en) * | 2017-05-16 | 2017-12-08 | 梁严文 | A kind of fig insect prevention bag |
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| EP0665737B1 (en) * | 1992-10-21 | 1998-12-09 | Minnesota Mining And Manufacturing Company | Moisture-proof resealable pouch and container |
| CN203359083U (en) * | 2013-07-15 | 2013-12-25 | 张恒 | Thin film type plastic bag |
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| US20180245277A1 (en) * | 2017-02-28 | 2018-08-30 | Itai Yahav | Magnetic laundry bag |
| CN206939378U (en) * | 2017-07-24 | 2018-01-30 | 苍南县宏大箱包有限公司 | A kind of toiletry bag of folding with convenience and the waterproof that is open |
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2019
- 2019-04-10 CN CN201910286134.7A patent/CN110169277B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631040A (en) * | 2012-05-14 | 2012-08-15 | 四川大学 | Belt with two rows and two columns of buckles and two rows of belt holes |
| CN102641009A (en) * | 2012-05-14 | 2012-08-22 | 四川大学 | Simple leather belt fixing device |
| CN104170674A (en) * | 2014-09-15 | 2014-12-03 | 贵州省烟草科学研究院 | Tobacco field management method for improving quality of upper tobacco leaves |
| CN105197353A (en) * | 2015-10-06 | 2015-12-30 | 王春林 | Special box for small living thing transportation |
| CN205946772U (en) * | 2016-08-23 | 2017-02-15 | 广西壮族自治区烟草公司百色市公司 | Flue -cured tobacco cover bag |
| CN206713630U (en) * | 2017-05-16 | 2017-12-08 | 梁严文 | A kind of fig insect prevention bag |
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| CN110169277A (en) | 2019-08-27 |
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