fishing vessel hull design 渔船船身设计
A bailer or manual water pump is not required for any multi-hull vessel that has subdivided multiple-sealed hull construction.
水斗和水泵对于多船体或者多舱的船不是必须的！
Having stayed at a small isolated island for about a month, I saw a vessel heave in sight, hull down.
在一个小孤岛呆了将近一个月后，我终于看见一艘轮船驶入视线，可以看到船的桅杆了。
If vessel has double hull or sides are facilities available to inert ballast tanks and other void Spaces?
船舶是否是双层壳或双层侧，设备是否可进入惰气压载舱和其他空旷区域？
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