它是由主机，CNC，驱动装置，数控机床的辅助装置，编程机及其他一些附属设备所组成。
It is by the main engine, CNC, the drive, the numerical control engine bed auxiliary unit, the programming machine and other some appurtenances is composed.
铁道 车辆电气装置如驱动系统、辅助电源系统等，是铁路车辆的基本系统。
Railway vehicle electrical devices, such as driving system, such as auxiliary power system is the basic system of railway vehicle.
根据液力耦合器的结构和工作原理，分析了液力耦合器辅助启动时驱动装置的力矩传递关系及数学模型，并以动态信号流程图的形式进行直观表达；
According to couplings' structure and operating principle, it analyzed the drive system dynamics with coupling, described the transmission process of torque, and showed the dynamical signal flow.
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