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Cooling water pumps driven by direct reversing diesel engines are usually of the straight impeller vane type pump with a concentric housing to（）

A、facilitate bi-directional operation

B、provide the greatest pump efficiency

C、prevent pump clogging from marine growth

D、prevent cavitation at the pump outlet

时间：2022-01-02 03:25 关键词：船舶电气与船舶安全

答案解析

A

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