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问题详情

Which of the terms listed below represents the operational speed at which excessive engine vibration is created?（）

A、Non-harmonic speed

B、Critical speed

C、Maximum speed

D、Design maximum speed

时间：2022-01-04 10:12 关键词：船舶电气与船舶安全水路交通运输技能考试海船船员考试

答案解析

B

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