The telecommunications are more advanced with the program-controlled exchange and digital transmission.
通讯上实现了交换程控化、传输数字化。
As a key professional specialty course of electronic information technology, program-controlled exchange has been set up at various colleges and universities generally.
程控交换技术作为电子信息类专业重要专业课程，已在各高校普遍开设。
Postal and telecommunications to achieve the program-controlled exchange, digital transmission will take the lead in the province completed the first telephone counties.
邮电通讯实现了交换程控化，传输数字化，并率先在全省建成了第一个电话县。
The designs both software and hardware for a special test system of the call-connection of the program-controlled exchange are introduced and the structures both software and hardware are showed here.
介绍笔者为测试交换机呼叫接续功能而开发的，供大型交换机生产线使用的一套专用测试系统的软硬件设计方法。
This paper reports a multi-feature stored program controlled (SPC) switching system which has voice and data exchange feature and multi-interface.
本文介绍一种具有话音和数据交换功能且具有多种用户接口的多功能交换系统。
In electric power system, Digital Program Controlled Exchange has been used broadly because communications requests high reliability.
在电力系统中，由于对通信的可靠性要求较高，因此程控数字交换机正在得到广泛的应用。
In electric power system, Digital Program Controlled Exchange has been used broadly because communications requests high reliability.
在电力系统中，由于对通信的可靠性要求较高，因此程控数字交换机正在得到广泛的应用。
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