The effect of elastic coupling on wobble plate piston engine shafting vibration in the underwater craft was discussed principally.

本文主要讨论在某水下航行装置中，弹性联轴节对摆盘式活塞发动机轴系振动的影响。

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In overseas develop countries; however, the service depth bomb weapons are equipped with non contact fuze that has high effectiveness in attacking underwater craft.

国外发达国家现役的深弹配备的都是非触发式近感引信，攻潜效能高。

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Studies of the sound radiation and vibration of the ring stiffened cylindrical shell under the circumferential excitation are important to predict the noise of the underwater naval craft.

周向激励下加筋圆柱壳体振动和声辐射特性的研究是预测水下航行器壳体噪声的关键环节。

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The maneuverability also lets it navigate in strong currents that stifle other underwater craft, the creators said.

CNN: Winged luxury submarines 'fly' underwater

The craft can stay underwater for up to five hours and travel at speeds up to 6 knots, the company says on its Web site.

CNN: Winged luxury submarines 'fly' underwater