JP4589272B2 - Water bottom tillage device - Google Patents

Water bottom tillage device Download PDF

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JP4589272B2
JP4589272B2 JP2006178024A JP2006178024A JP4589272B2 JP 4589272 B2 JP4589272 B2 JP 4589272B2 JP 2006178024 A JP2006178024 A JP 2006178024A JP 2006178024 A JP2006178024 A JP 2006178024A JP 4589272 B2 JP4589272 B2 JP 4589272B2
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nozzle
water
rotation
downward
tillage device
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JP2008005736A (en
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光典 森
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株式会社森機械製作所
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    • 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
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Description

本発明は、海底、湖底、川底等の水底を生物が生息するのに適した環境に活性化するのに有用な水底耕耘装置に関する。   The present invention relates to a water bottom tillage device useful for activating a water bottom such as a sea bottom, a lake bottom, or a river bottom into an environment suitable for living organisms.

本発明に関連する先行技術文献情報として、例えば、下記の技術文献１が有る。
特開２００３−２６５０６３号公報 As prior art document information related to the present invention, for example, there is the following technical document 1.
JP 2003-265063 A

前記特許文献１の発明に記載の水中耕耘装置は、船に備えられた微細気泡混合装置により供給される微細気泡混合水を水底及び／又は水中に向けて噴射するノズルを備えてなるものであり、当該水底耕耘装置を水底に降ろした状態で船により曳航しながら前記ノズルから前記微細気泡混合水を噴射するようにしたものである。
この水底耕耘装置によれば、船で曳航されながらノズルから噴射される微細気泡混合水により、水底を耕しながらの水底や水中への酸素の供給を広い範囲で効率的に行うことができる。 The underwater tillage device described in the invention of Patent Document 1 includes a nozzle that injects fine bubble mixed water supplied by a fine bubble mixing device provided in a ship toward the bottom and / or water. The fine bubble mixed water is jetted from the nozzle while towing by a ship in a state where the water bottom tillage device is lowered to the water bottom.
According to this water bottom tillage device, oxygen can be efficiently supplied in a wide range while plowing the bottom of the water and fine oxygen mixed water jetted from the nozzle while being towed by a ship.

ところで、前記特許文献１の発明に記載の水中耕耘装置は、ノズルがその噴射方向を一方向（下向き）として固定されおり、水中耕耘装置の耕耘作業における上下の方向性が決まっている。
そのため、水中耕耘装置が、誤操作や潮流により水中耕耘装置が上下逆転した場合、水底を耕しながらの水底や水中への酸素の供給が行えないということが生じてしまうし、水中耕耘装置が水中にあるので、当該水中耕耘装置の状態を確認することが困難であると思われる。
本発明者は、前記特許文献１の発明に記載の水中耕耘装置について、水底を耕しながらの水底や水中への酸素の供給をより効率的に行い、しかも確実性をも向上させるという観点から、鋭意研究を重ねた結果本発明に至ったものである。 By the way, in the underwater tillage device described in the invention of Patent Document 1, the nozzle is fixed with the injection direction as one direction (downward), and the vertical direction in the tilling work of the underwater tillage device is determined.
Therefore, if the underwater tillage device is turned upside down due to an erroneous operation or tidal current, it may not be possible to supply oxygen to the bottom of the water while plowing the bottom of the water. Therefore, it seems difficult to confirm the state of the underwater tillage device.
From the viewpoint of more efficiently supplying oxygen to the water bottom and water while plowing the bottom of the water, the inventor described in the invention of Patent Document 1 further improves the certainty. As a result of intensive studies, the present invention has been achieved.

本発明は、水底を耕しながらの水底や水中への酸素の供給をより効率的、且つ確実に行うことを課題とし、この課題を解決した水底耕耘装置の提供を目的とする。   An object of the present invention is to more efficiently and reliably supply oxygen to the water bottom and water while plowing the water bottom, and an object of the present invention is to provide a water bottom tillage device that solves this problem.

前記目的を達成するため、本発明が採用した技術的手段は、船に備えられた微細気泡混合装置により供給される微細気泡混合水を水底及び／又は水中に向けて噴射するノズルを備えた水底耕耘装置において、前記ノズルは、上下方向に回動可能に支持され、曳航時においてその噴射方向が下向きとなるように回動するとともに、当該下向き状態が保持されることを特徴とする水底耕耘装置にしたことである。   In order to achieve the above-mentioned object, the technical means adopted by the present invention is a water bottom having a nozzle for injecting fine bubble mixed water supplied by a fine bubble mixing device provided in a ship toward the bottom and / or water. In the tillage device, the nozzle is supported so as to be pivotable in the vertical direction, and is rotated so that the injection direction is downward when towing, and the water bottom tillage device is maintained. It is that.

前記ノズルの具体的な回動構造として、例えば、ノズルの回動軸心と同軸で当該ノズルと一体構造とするノズル側ギアと、当該ノズル側ギアと噛合う伝達ギアと、当該伝達ギアと一体として上下２方向に突出させた抵抗板とを含み、曳航時において、下側に突出する抵抗板が水底に接触するその接触抵抗を当該抵抗板に対して曳航方向と逆方向に力を作用させて伝達ギアを回動させ、この伝達ギアの回動がノズル側ギアの回動として伝達されることにより、ノズルの噴射方向を下向きにするとともに、当該ノズルの下向き状態を保持するようにした構成が例示できる。   Specific examples of the rotation structure of the nozzle include, for example, a nozzle-side gear that is coaxial with the rotation axis of the nozzle and integrated with the nozzle, a transmission gear that meshes with the nozzle-side gear, and an integral with the transmission gear. A resistance plate that protrudes in two directions up and down, and during towing, the resistance plate that protrudes downward touches the bottom of the water by applying a force to the resistance plate in a direction opposite to the towing direction. The transmission gear is rotated, and the rotation of the transmission gear is transmitted as the rotation of the nozzle-side gear so that the nozzle ejection direction is downward and the downward state of the nozzle is maintained. Can be illustrated.

本発明によれば、水底を耕しながらの水底や水中への酸素の供給をより効率的、且つ確実に行うことができる。   According to the present invention, it is possible to more efficiently and reliably supply oxygen to the water bottom and water while plowing the water bottom.

以下、本発明に係る水底耕耘装置を実施するための最良の形態を図面に基づいて説明する。
本形態の水底耕耘装置Ａは、前記特開２００３−２６５０６３号公報の発明に記載の水底耕耘装置と同様に、船（図示せず）に備えられた微細気泡混合装置（図示せず）により供給される微細気泡混合水を水底及び／又は水中に向けて噴射するノズル１を備えてなり、水底に着底した状態で船により曳航されながら前記ノズル１から前記微細気泡混合水を水底及び／又は水中に噴射するようにしたものである。
又、本形態の水底耕耘装置Ａは、当該水底耕耘装置Ａと船とに亘って連結されたロープ（図示せず）により連結されることにより、船による曳航が行われる。 Hereinafter, the best mode for carrying out a water bottom tillage device according to the present invention will be described with reference to the drawings.
The bottom bottom tillage device A of this embodiment is supplied by a fine bubble mixing device (not shown) provided in a ship (not shown) as in the bottom bottom tillage device described in the invention of JP-A-2003-265063. And / or a nozzle 1 for injecting the fine bubble mixed water toward the bottom and / or the water, while being towed by a ship in a state where the fine bubble mixed water is landed on the bottom of the water, It is designed to jet into water.
Further, the submarine tilling device A of this embodiment is towed by a ship by being connected by a rope (not shown) that is connected across the submarine tilling device A and the ship.

以下、本形態の水底耕耘装置Ａを具体的に説明する。
水底耕耘装置Ａは、２枚の支持板Ａ１，Ａ２間の前方（曳航方向）に、微細気泡混合装置（図示せず）から配管される可撓性を有するホースＨが連結される固定管Ａ３が、前記2枚の支持板Ａ１，Ａ２間の後方に、前記ノズル１が複数後向きに装着された回動管Ａ４が夫々設けられ、更に、これら固定管Ａ３と回動管Ａ４とに亘って可撓制を有する３本のホースＡ５を配管し、前記微細気泡混合装置から供給される微細気泡混合水を、固定管Ａ３、ホースＡ５、回動管Ａ４を介して前記ノズル１から噴出させるようにしている。 Hereinafter, the water bottom tillage device A of this embodiment will be described in detail.
The submerged tillage device A is a fixed tube A3 in which a flexible hose H piped from a fine bubble mixing device (not shown) is connected to the front (towing direction) between the two support plates A1 and A2. However, behind the two support plates A1 and A2, there are provided rotating tubes A4 each having a plurality of nozzles 1 mounted rearwardly, and further spanning between the fixed tube A3 and the rotating tube A4. Three hose A5 having flexibility is piped, and the fine bubble mixed water supplied from the fine bubble mixing device is ejected from the nozzle 1 through the fixed tube A3, the hose A5, and the rotating tube A4. I have to.

前記回動管Ａ４は、前記支持板Ａ１，Ａ２に対して前後方向回動自在に支持され、当該回動管Ａ４の回動軸心がノズル１における上下方向（水底方向及び水面方向）の回動軸心となる。
又、回動管Ａ４と前記支持板Ａ１，Ａ２とに亘って、曳航時において回動管Ａ４を前記ノズル１の噴射方向が下向き（水底方向）になる方向に回動させる回動伝達機構２が配設されている。
尚、以下では、図２乃至図４において、水底耕耘装置Ａの水底側面をＡ面といい、水面側面をＢ面という。 The rotating tube A4 is supported so as to be rotatable in the front-rear direction with respect to the support plates A1 and A2, and the rotation axis of the rotating tube A4 rotates in the vertical direction (water bottom direction and water surface direction) in the nozzle 1. It becomes a dynamic axis.
Further, a rotation transmission mechanism 2 that rotates the rotation tube A4 in the direction in which the injection direction of the nozzle 1 is downward (bottom direction) across the rotation tube A4 and the support plates A1 and A2 during towing. Is arranged.
Hereinafter, in FIG. 2 to FIG. 4, the water bottom side surface of the water bottom tillage device A is referred to as A surface, and the water surface side surface is referred to as B surface.

前記回動伝達機構２は、前記回動管Ａ４の外周に当該回動管Ａ４と同軸で一体回動するように設けられた２つのノズル側ギア３と、前記支持板Ａ１，Ａ２に前記ノズル側ギアと噛合うように前後方向回動可能として夫々軸支された２つの伝達ギア４と、当該伝達ギア４に対してＡ側とＢ側とに向けて夫々一体的に突設した抵抗板５Ａ，５Ｂと、当該抵抗板５Ａ，５Ｂの回動動作を規制する規制突起６とから構成されている。   The rotation transmission mechanism 2 includes two nozzle side gears 3 provided on the outer periphery of the rotation tube A4 so as to rotate integrally with the rotation tube A4, and the nozzles on the support plates A1 and A2. Two transmission gears 4 that are pivotally supported so as to be able to rotate in the front-rear direction so as to mesh with the side gears, and resistance plates that project integrally from the transmission gear 4 toward the A side and the B side, respectively. 5A and 5B, and the regulation protrusion 6 which regulates the rotation operation of the resistance plates 5A and 5B.

前記ノズル側ギア３及び伝達ギア４は、夫々、ノズル１の上下回動範囲にのみ噛合歯が形成されたものである。
前記抵抗板５Ａは、水底耕耘装置ＡのＡ面から突出し、前記抵抗板５Ｂは、水底耕耘装置ＡのＢ面から突出する長さに夫々形成されており、図３及び図４に示すように、水底耕耘装置Ａが水底においてＡ面又はＢ面のいずれかが着底しても、抵抗板５Ａ又は抵抗板５Ｂのいずれかが水底に接触するようにしている。
そして、Ａ面が水底に着底したことにより前記抵抗板５Ａが水底に接触し、水底耕耘装置Ａが曳航されると、水底に接触していることによる抵抗により、抵抗板Ａに対してノズル１方向（図において反時計回り）に回動させる力が作用し、この力によって前記伝達ギア４が図において反時計回りに回動する。
更に、前記伝達ギア４の回動により、当該伝達ギア４と噛み合うノズル側ギア３が図において時計回りに回動することにより前記回動管Ａ４が回動して前記ノズル１が下向き（水底方向）となる。
又、Ｂ面が着底した場合にも、図に示すように、結果的にＡ面が着底した状態と同様になるので、ノズル１を下向き（水底方向）にすることができる。 The nozzle side gear 3 and the transmission gear 4 are each formed with meshing teeth only in the vertical rotation range of the nozzle 1.
The resistance plate 5A protrudes from the A surface of the water bottom tillage device A, and the resistance plate 5B is formed to have a length protruding from the B surface of the water bottom tillage device A, as shown in FIGS. Even if either the A surface or the B surface of the water bottom tillage device A reaches the bottom, either the resistance plate 5A or the resistance plate 5B comes into contact with the water bottom.
Then, when the A surface is settled on the bottom of the water, the resistance plate 5A comes into contact with the bottom of the water, and when the underwater tillage device A is towed, the resistance against the bottom of the water causes the resistance plate A to have a nozzle. A force that rotates in one direction (counterclockwise in the figure) acts, and this force causes the transmission gear 4 to rotate counterclockwise in the figure.
Further, the rotation of the transmission gear 4 causes the nozzle side gear 3 meshing with the transmission gear 4 to rotate clockwise in the figure, whereby the rotation tube A4 rotates and the nozzle 1 faces downward (in the bottom direction). )
Further, when the B surface is bottomed, as shown in the figure, the result is the same as when the A surface is bottomed, so that the nozzle 1 can be directed downward (to the bottom of the water).

前記規制突起６は、前記抵抗板５Ａ及び抵抗板５Ｂの回動限界位置に設けられ、これら抵抗板５Ａ，５Ｂが回動した際に接触し、この接触によりこれ以上の回動を阻止している。
ここで回動限界位置とは、前記伝達ギア４と前記ノズル側ギア３とをその噛合いが外れない程度に回動させる限界位置である。 The restricting projection 6 is provided at a rotation limit position of the resistor plate 5A and the resistor plate 5B, and contacts when the resistor plates 5A and 5B are rotated, and this contact prevents further rotation. Yes.
Here, the rotation limit position is a limit position where the transmission gear 4 and the nozzle side gear 3 are rotated to such an extent that the meshing is not disengaged.

次に、前記形態の水底耕耘装置Ａの動作を説明する。
水底耕耘装置Ａを船から水中に落とし込み、当該水底耕耘装置Ａを着底させる（図参照）。
このとき、抵抗板５Ａ及び抵抗板５Ｂは垂直状態にあって、前記ノズル１が平行方向にある。
又、水底耕耘装置Ａを、そのＡ面を水底に向けて落とし込んだ際、潮流や誤操作や潮流によりＡ面が上向き（水面方向）になってしまっても、前記したように抵抗板Ｂが突出するＢ面が下向き（水底）に着底する（図参照）。
水底耕耘装置Ａの着底後に船を前進させると、着底された水底耕耘装置Ａが曳航され、この曳航に伴って、着底したＡ面又はＢ面の抵抗板５Ａ又は抵抗板５Ｂに作用する水底の抵抗によって伝達ギア４が回動し、この回動がノズル側ギア３から回動管Ａ４を経てノズル１の下向き（水底方向）の回動として伝達される。
又、水底耕耘装置Ａの曳航により、下向きとなったノズル１には、曳航中において抵抗板５Ａ又は抵抗板５Ｂに作用している水底への接触による抵抗が常時作用しているので、そのノズル１の下向き状態が保持される。
そして、前記微細気泡混合装置から供給される微細気泡混合水が下向きのノズル１から水底に向けて噴射され、その噴射の勢いによって水底を耕すとともに、水底や水中に酸素を供給する。 Next, operation | movement of the water bottom tillage apparatus A of the said form is demonstrated.
The bottom bottom tillage device A is dropped from the ship into the water, and the bottom bottom tillage device A is settled (see the figure).
At this time, the resistance plate 5A and the resistance plate 5B are in a vertical state, and the nozzle 1 is in the parallel direction.
In addition, when the bottom surface tillage device A is dropped with the A side facing the bottom, the resistance plate B protrudes as described above even if the A side faces upward (water surface direction) due to tidal currents, misoperation, or tidal currents. The B surface to be touched down (bottom of the water) (see the figure).
When the ship is advanced after the bottom of the bottom bottom tillage device A is landed, the bottomed bottom bottom tillage device A is towed and, along with this towing, acts on the resistance plate 5A or the resistance plate 5B of the bottomed A surface or B surface. The transmission gear 4 is rotated by the resistance of the water bottom, and this rotation is transmitted from the nozzle side gear 3 through the rotation pipe A4 as downward rotation (water bottom direction) of the nozzle 1.
In addition, the nozzle 1 turned downward by the towing of the bottom bottom tillage device A is always subjected to resistance due to contact with the bottom of the water acting on the resistance plate 5A or the resistance plate 5B during towing. 1 downward state is maintained.
And the fine bubble mixed water supplied from the said fine bubble mixing apparatus is sprayed toward the bottom of the water from the nozzle 1 facing downward, and while cultivating the bottom of the water by the momentum of the spray, oxygen is supplied to the bottom and water.

したがって、本形態の水底耕耘装置Ａによれば、着底時においてＡ面又はＢ面が逆転しても、伝達ギア４を回動させる前記抵抗板５Ａ又は抵抗板５Ｂのいずれかが必ず水底に接触するので、Ａ面又はＢ面のいずれの着底状態でも、前記ノズル１は下向き（水底方向）に回動するとともに、その下向き状態を保持することができる。
よって、水底を耕しながらの水底や水中への酸素の供給をより効率的、且つ確実に行うことができる。 Therefore, according to the water bottom tillage device A of the present embodiment, either the resistance plate 5A or the resistance plate 5B that rotates the transmission gear 4 is always on the bottom even if the A surface or the B surface reverses at the time of landing. Since they are in contact with each other, the nozzle 1 can be rotated downward (in the direction of the bottom of the water) and kept in the downward state in any bottom state of the A surface or the B surface.
Therefore, it is possible to more efficiently and reliably supply oxygen to the water bottom and water while plowing the water bottom.

なお、本発明は、例示した実施の形態に限定するものでは無く、特許請求の範囲の各項に記載された内容から逸脱しない範囲の構成による実施が可能である。   It should be noted that the present invention is not limited to the illustrated embodiments, and can be implemented with configurations within a range that does not deviate from the contents described in the respective claims.

本発明に係る水底耕耘装置の平面図。The top view of the water bottom tillage apparatus concerning the present invention. 図１の（２）−（２）線拡大断面図。The (2)-(2) line expanded sectional view of FIG. 同、断面図で、Ａ面が下向きである状態を示す。FIG. 6 is a cross-sectional view showing a state where the A surface is facing downward. 同、断面図で、Ｂ面が下向きである状態を示す。FIG. 6 is a cross-sectional view showing a state where the B surface is facing downward.

符号の説明Explanation of symbols

Ａ：水底耕耘装置
Ａ１：支持板
Ａ２：支持板
Ａ３：固定管
Ａ４：回動管
１：ノズル
２：回動伝達機構
３：ノズル側ギア
４：伝達ギア
５Ａ：抵抗板
５Ｂ：抵抗板 A: Submerged tillage device A1: Support plate A2: Support plate A3: Fixed tube A4: Rotating tube 1: Nozzle 2: Rotation transmission mechanism 3: Nozzle side gear 4: Transmission gear 5A: Resistance plate 5B: Resistance plate

Claims (2)

船に備えられた微細気泡混合装置により供給される微細気泡混合水を水底及び／又は水中に向けて噴射するノズルを備えた水底耕耘装置において、
前記ノズルは、上下方向に回動可能に支持され、曳航時においてその噴射方向が下向きとなるように回動するとともに、当該下向き状態が保持されることを特徴とする水底耕耘装置。 In a water bottom tillage device provided with a nozzle for injecting fine bubble mixed water supplied by a fine bubble mixing device provided in a ship toward the bottom and / or water,
The nozzle is supported so as to be pivotable in the vertical direction, and is rotated so that the spraying direction is downward when towing, and the downwardly cultivating device is maintained. 前記ノズルの回動軸心と同軸で当該ノズルと一体構造とするノズル側ギアと、当該ノズル側ギアと噛合う伝達ギアと、当該伝達ギアと一体として上下２方向に突出させた抵抗板とを含み、曳航時において、下側に突出する抵抗板が水底に接触するその接触抵抗を当該抵抗板に対して曳航方向と逆方向に力を作用させて伝達ギアを回動させ、この伝達ギアの回動がノズル側ギアの回動として伝達されることにより、ノズルの噴射方向を下向きにするとともに、当該ノズルの下向き状態を保持するようにしたことを特徴とする請求項１に記載の水底耕耘装置。   A nozzle-side gear that is coaxial with the rotation axis of the nozzle and integrated with the nozzle, a transmission gear that meshes with the nozzle-side gear, and a resistance plate that protrudes in two directions in the vertical direction as a unit with the transmission gear. In the case of towing, the transmission plate is rotated by applying a force to the resistance plate in the direction opposite to the towing direction with the contact resistance of the resistance plate protruding downward contacting the bottom of the water. 2. The water bottom tillage according to claim 1, wherein the rotation is transmitted as the rotation of the nozzle side gear so that the injection direction of the nozzle is made downward and the downward state of the nozzle is maintained. apparatus.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318749A (en) * 2017-07-29 2017-11-07 无为县慧富水蛭养殖专业合作社 A kind of moisture supplementary device of hirudiniculture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109006644A (en) * 2018-06-07 2018-12-18 安徽广志药业有限公司 A kind of pond disinfection agent sprinkling ship used for aquiculture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003125649A (en) * 2001-10-25 2003-05-07 Aura Tec:Kk Soil improving method and apparatus
JP2003265063A (en) * 2002-03-19 2003-09-24 Mori Kikai Seisakusho:Kk Tillage system for water bottom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4623970Y1 (en) * 1968-03-26 1971-08-18
JPS5045032Y2 (en) * 1971-11-30 1975-12-20
JP3220279B2 (en) * 1993-05-11 2001-10-22 社団法人マリノフォーラム二十一 Submarine tillage device and submarine tillage method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003125649A (en) * 2001-10-25 2003-05-07 Aura Tec:Kk Soil improving method and apparatus
JP2003265063A (en) * 2002-03-19 2003-09-24 Mori Kikai Seisakusho:Kk Tillage system for water bottom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318749A (en) * 2017-07-29 2017-11-07 无为县慧富水蛭养殖专业合作社 A kind of moisture supplementary device of hirudiniculture
CN107318749B (en) * 2017-07-29 2020-07-17 无为县慧富水蛭养殖专业合作社 Moisture supplementing device for leech cultivation

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