No. 17 actuates the pilot valve, the main engine begins to run on the starting air.

当单作用气缸17的杆促动引导阀，主机开始在启动空气的作用下运转。

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No. 17 actuates the pilot valve, the main engine begins to run on the starting air.

当单作用气缸17的杆促动引导阀，主机开始在启动空气的作用下运转。

youdao