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1·The fourth man in the life raft is a UnitedStates Navy underwater demolition team swimmer.

救生筏中的四个蛙人隶属于美国海军水下爆破队。

2·The Seals' water-borne missions are an inheritance from their ancestors, a small group of navy swimmers who formed the underwater demolition teams.

海豹突击队的水上任务来自于前身的遗续——一小群海军游泳健儿组成的水中爆破大队。

3·The mechanism of demolition of the reinforced concrete tank by hydraulic blasting is explained by the theory of underwater explosion.

本文试图用水下爆炸原理说明水压爆破拆除钢筋混凝土罐体的机理。

4·Berth in Dongdu Port Area of Xiamen Port, the paper expounds the working mechanism, method design and result of execution of underwater strap-on blasting method for demolition of the pile foundation.

通过对厦门东渡19号泊位桩基码头几种桩基拆除试验及工期成本分析，重点阐述了水下捆绑爆破法的工艺原理、方案设计及实施效果。

5·Some practical countermeasures are introduced according to the analyses on problems of underwater reef demolition in deep harbors.

通过对深水港水下炸礁中的一些难题分析，提出了一些解决实际问题的实用措施。