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单选题

After stopping oily water separator, sea water should be permitted for () minutes,()should be closed after stopping pump to reduce oxidation corrosion of inner wall.

发布日期:2021-03-22

After stopping oily water separator, sea water sho...
A

15;inlet value

B

15;inlet and outlet value

C

30;inlet value

D

30;inlet and outlet value

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此试题出现在

水路交通运输技能考试

海船船员考试

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