()is put into use in the late years to maintain a preset tension in a mooring line after a ship has been tied up at a pier.

A、The large-tension mooring B、The small-tension mooring C、The variable-tension mooring D、The constant-tension mooring

时间:2022-11-02 00:40:35 所属题库:船舶电气与船舶安全题库

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