介绍了铁路电报自动交换网的功能特点，电报网的流量控制，网络运行保障及效果。
It introduces the functions and characteristics of railways telex automatic switch network, the volume control of telex network, operation guarantee of network and effects of network operation.
为实现环吹风系统供、回风平衡的自动控制，采用了体积流量控制器。
In order to automatically control the supply and return air balance in quench air systems, the volume flow controller is used.
研究分析了基于质量流量控制器、可编程序控制器和触摸屏的自动控制系统气体流量自动控制方法。
The MOCVD system is specifically introduced, and the gas flow automatic control method based on the mass flow controller(MFC) and programmable logic controller(PLC) is studied and analyzed.
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