spc exchange meaning in English
程控交换机
Examples
- General specification for power supply system of spc exchange
程控电话交换机电源通用规范 - Spc exchange fundamentals
程控交换原理 - R & d and manufacture of spc exchanges and innovative components and devices have reached a certain scale and level
城市彩电普及率已达每百户1008台，农村电视机普及率达到每百户70台以上(其中彩电普及率达每百户27 . 2台) 。 - This is a clever use of n - isdn , which is technologically rather mature . in addition , today s spc exchanges mostly provide such a function
N - isdn在技术上已非常成熟，而且现在的程控交换机基本上都具备了这项功能。 - All these changes took place after the first spc exchange was put into service in the capital in 1984 , enabling the use of pcm circuits for local trunks
这是从1984年北京开通第一个程控交换局，首次在市内中继使用pcm数字电路之后巨大的变化。