In the shafting management () should be paid more attention. Ⅰ.f the while metal tailshaft bearing is dripping oil Ⅱ.f some area become blue during the running Ⅲ.he deformation of crankshaft

A . Ⅰ B . Ⅱ C . Ⅲ D . Ⅱ+Ⅲ

时间:2022-10-02 23:59:11 所属题库:船舶电气与船舶安全题库

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