美国海军研究办公室要求这两个研究小组提供一些不需要更换电池的水下滑行机器人设计方案。

The US Office of Naval Research has asked the two teams for ideas for gliders that will never need a battery change.

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研究结果表明，后摆蹲踞式出发技术不仅在预备姿势、起跳、腾空等阶段有利因素较多，而且在入水及水下滑行阶段更具有明显的优势。

The result shows: back-swing style has obvious advantages not only in the stage of set preparatory, set-off and flight but in diving moment and underwater slide.

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