The steam supply to the engine is controlled by the governor.

供给发动机的蒸汽是由调节器加以调节的。

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This device blocks steam supply immediately if an emergency occurs.

一旦发生紧急状况，这些装置立刻阻断蒸汽。

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A heat pump of steam supply system will be introduced in this paper, which based on the PLC of Siemens.

本文介绍了一种基于西门子PLC的热泵供汽控制系统。

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