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As the plunger moves up, the ports are closed and ...

海船船员考试

单选题

As the plunger moves up, the ports are closed and the fuel （） and delivered to the injector nozzle at very high pressure.

发布日期：2021-03-22

A.being compressed

B.to be pumped up

C.is pressurized

D.are built up

标签： plunger moves ports closed fuel

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