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Corrosion inhibitors and/or soluble oils are added...

海船船员考试

单选题

Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to （）

发布日期：2021-03-22

A.maintain low pH in the cooling water

B.reduce the cooling water temperature

C.increase cooling water hardness

D.form a protective film on metal surfaces

标签： corrosion inhibitors soluble oils added

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