有些船舶在不同的船龄阶段，在船体结构上出现疲劳裂纹，特别是在船底、舷侧纵骨中较为突出。
Endurance cracks may appear in the hull structure at different ship-ages for some ships, especially at the vessel bottom and the longitudinal bone on board side.
方船底部的蜂巢结构可以使之能漂浮在水上。
A honeycomb structure added to the bottom of the Ark allows it to float.
船舶的强力甲板、船底板和舷侧外板在承受作用在船体结构上的弯曲和其他载荷中起一根箱型梁（船体梁）的作用。
The strength deck, bottom, and side shell of a ship act as a box girder in resisting bending and other loads imposed on the structure.
船舶的强力甲板、船底板和舷侧外板在承受作用在船体结构上的弯曲和其他载荷中起一根箱型梁（船体梁）的作用。
The strength deck, bottom, and side shell of a ship act as a box girder in resisting bending and other loads imposed on the structure.
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