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The scavenging air ports are located at （） that th...

海船船员考试

单选题

The scavenging air ports are located at （） that they are just exposed by the upper edge of the piston when the piston is in the bottom dead center position.

发布日期：2021-03-22

A.so a height

B.such a height

C.so high

D.such high

标签： scavenging air ports located exposed

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