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围网捕捞
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围网捕捞
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围网捕捞
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purse seining
围网捕捞
用长带形或一囊两长翼形网具,包围密集鱼群进行捕捞的作业方式。是捕捞海洋中上层鱼类的主要捕捞作业之一。世界海洋围网捕捞产量占海洋总捕捞产量的25%~30%。大型湖泊和水库中也有使用。
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airborne weapon environmental test
airborne weapon projection device
airborne weapon range test
airborne weapon system
airborne weapon system test
airborne weather measuring instrument
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air breathing direct methanol fuel cell
air-breathing direct methanol fuel cell
air bridge structure
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airbrush
Airbus Helicopters SAS
Airbus S.A.S.
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air cargo compartment power drive unit
Air cargo terminal
air cargo terminal
air cargo transportation
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