介绍了海洋调查中测量设备拖曳体（拖鱼）的三种定位方法：舷挂式、LAYBACK方式和超短基线方式；

This paper describes three positioning modes of towing equipment in marine survey, the board-hanging mode, LAYBACK mode and ultra-short baseline mode.

youdao

乌鸦心中暗笑，并迅速地用力拖扯鱼线，它完全相信自己一定能从老人手中逃脱。

Raven chuckled to himself. Then swiftly and powerfully he pulled at the line, sure he could jerk it from the old man’s hands.

youdao

那天夜里他睡着了。他醒来时觉得当这条鱼跳起时钓丝就滑过他的手指。他缓慢地把钓丝放松，尽力想把这条马林鱼拖乏。

That night he slept. He awoke to feel the line running through his fingers as the fish jumped. Feeding line slowly , he tried to tire the marlin.

youdao