系统网络体系结构(SNA)中，对话控制程序提供的一种功能。一个由两个方向上的一系列请求和应答组成的单元。
A facility provided by dialog control in SNA. A unit composed of a series of requests and responses in both directions.
车辆传动系统，车辆传动单元，使车辆传动系统运行的方法及控制程序。
Vehicle drive system, vehicle propulsion unit, method and control program for operating a vehicle drive system.
程序存储单元为存有加工控制程序和与上位计算机交换数据的通讯程序的存储单元。
The procedure storage unit is a storage unit comprising a processing control procedure and a communication procedure which is used for interchanging data with the host computer.
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