... 拖曳天线 drag antenna; antenna trailer; trailing antenna 拖曳效率 trawling efficiency 拖曳性能 towing performance ...
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Compared with pair trawling, it increases the single net production for 40 to 45 per cent and lowers the cost and decreases the Labour intensity. It improves the economic efficiency.
经一年来生产试验证明产量增加明显，与同马力双船拖网相比，平均单船网产增加40 ~ 45%。
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