电子信息系统控制单元 telematics control unit
电—气转换器是一种完成由电信号到气信号转换的装置，是自动化过程控制系统中不可或缺的关键设备。
Electro-pneumatic converter is a kind of equipment that converts electrical signal to pneumatic signal, and is the essential key device in automatic process control system.
电-机转换元件是电液控制系统中不可缺少的部分，它将电信号转换为机械信号-力(力矩)或位移。
Electric - machine conversion component is indispensable of the control system of the electric liquid. It transforms the electric signal into mechanical mete - force (moment) and displacement.
下一代电信网是基于IP的网络，SS7及呼叫控制原理是软交换控制系统的重要组成部分。
The next generation telecommunication networks will be based on IP. SS7 and the fundamental of call control are main components of softswitch control system.
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