The writer has ever measured the depths of Norwagian herring purse seine during surrounding-fishing operation.

笔者曾对挪威鲱鱼围网的下纲沉降深度在围捕作业中进行了测试。

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The writer has ever measured the depths of Norwagian herring purse seine during surrounding-fishing operation.

笔者曾对挪威鲱鱼围网的下纲沉降深度在围捕作业中进行了测试。

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