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.
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.
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.
钓鱼需要一个小小的苍蝇拖免费漂流、一旦鱼上钩，要巧妙，否则会飞到你休息。
Fishing tiny flies requires a drag free drift, and once hooked fish will need to be finessed or they will break your fly off.
也可以这样穿过某个你可能会用卡罗莱纳钓组来做钓的平滩。我认为在浅水中快速拖晃饵回来会更有效，因为鱼可能会被船吓到。
You can do it across the same flats where you'd use a Carolina rig, too, although I think walking is more effective in shallow water where bass might otherwise be spooked by the boat.
也可以这样穿过某个你可能会用卡罗莱纳钓组来做钓的平滩。我认为在浅水中快速拖晃饵回来会更有效，因为鱼可能会被船吓到。
You can do it across the same flats where you'd use a Carolina rig, too, although I think walking is more effective in shallow water where bass might otherwise be spooked by the boat.
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