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鳀鱼变水层拖网捕捞
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鳀鱼变水层拖网捕捞
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鳀鱼变水层拖网捕捞
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anchovies pelagic trawl fishing
鳀鱼变水层拖网捕捞
用机动渔船拖曳两翼单囊形网具,专捕处于水域中上层的鳀鱼(Engraulidae),也兼捕鲅鱼、鲐鱼等中上层鱼类的一种拖网捕捞方式。又称鳀鱼中层拖网捕捞、鳀鱼大目拖网捕捞、鳀鱼绳拖网捕捞。
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Urengoy-Uzhhorod Gas Pipeline
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ureteropelvic junction obstruction
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