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The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and （）.

A、reduce water temperature

B、reduce water turbulence

C、provide an air cushion

D、allow for an increase in water volume as the engine warms u

时间：2022-01-04 06:32 关键词：船舶动力装置海船船员考试

答案解析

D

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