spc exchange中文什么意思

• 程控交换机

• exchange:    vt. 1.(以某物与另一物)交换，调换 (for). ...
• digital spc exchange:    数字程控交换机
• office spc exchange:    局用程控交换机
• spc digital toll exchange:    程控数字长途电话交换机
• spc exchange fundamentals:    程控交换原理

例句与用法

1. General specification for power supply system of spc exchange
   程控电话交换机电源通用规范
2. Spc exchange fundamentals
   程控交换原理
3. 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) 。
4. 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。
5. 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。

其他语言

spc exchange перевод：станция с управлением по записанной программе, станция с программным управлением