For existing ships,()is not an improvement to safety.

A . the reinforcement of the aft transverse watertight bulkhead B . the double bottom structure in way of the foremost cargo hold C . the introduction of a more rigorous survey regime and greater attention to operating procedures D . introduction of new and improved desig

时间:2022-09-17 15:27:56 所属题库:船舶结构基本知识题库

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