船舶在港口里当然安全，但船不是为停泊在港湾里而建造的。
A ship in port is safe, but that's not what ships are built for.
第四章集中分析建造中船舶的物权。
Chapter four concentrates on the real right of vessel under construction.
这是船舶建造过程中是一个重要的环节。
目前民用船舶结构设计主要是依据船舶入级与建造规范进行的。
At present, civil ship structures are mostly designed by the rules.
目前民用船舶结构设计主要是依据船舶入级与建造规范进行的。
At present, civil ship structures are mostly designed by the rules.
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