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- central telephone exchange 电话总局
- An operator at a telephone exchange. 电话局的接线员
- In a Centrex-based telephony system, the telephone company's central office acts as the telephone exchange. 在基于Centrex的电话系统中,电话公司的中央办公室是电话交换的中心。
- Our nervous system can be likened to a telephone exchange. 我们的神经系统好比一部电话交换机。
- For example, with Centrex, the telephone exchange or telephone company's central office knows which extensions are internal. 例如,使用Centrex,电话交换机或电话公司的中央办公室将知道哪些分机是内部分机。
- An operator wearing earphone was sitting in the telephone exchange. 戴耳机的接线员正坐在总机室里。
- The nervous system can be likened to a telephone exchange. 神经系统好比一部电话交换机。
- The public enquiry service centres and central telephone enquiry centre received 2.73 million clients in 1999. 年内，各咨询服务中心和中央电话咨询服务中心为273万人次提供服务。
- centralized telephone exchange 中央电话局
- The Public Enquiry Service Centres and the Central Telephone Enquiry Centre served a total of 2.62 million clients in 2001. 年内，各谘询服务中心和中央电话谘询服务中心一共为262万人次提供服务。
- The new switchboard shares much of the workload of the telephone exchange. 这台新式交换机大大的减少了交换台的工作量。
- The public enquiry service centres and the Central Telephone Enquiry Centre had 2.59 million clients in 2000. 2000年，各谘询服务中心和中央电话谘询服务中心共为259万人次提供服务。
- The central telephone office routes the calls that originate from inside the company to the appropriate internal or external telephone number. 中央电话办公室会将公司内部的电话路由到相应的内部电话号码或外部电话号码。
- SPC exchanges have accounted for 99.8% of the country central office telephone exchanges and 99.6% of long distance transmission has been digitized. 全国局用交换机程控化比重达到99.;8%25，长途传输数字化比重达到99
- Our nervous system can be likened to a telephone exchanger. 我们的神经系统好比一部电话交换机。
- A private telephone exchange that automatically connects internal "branch" lines to the external circuits of a telephone system. 一种自动地将内部用户线连接到电话系统外线的专用电话交换机。
- Invention of 1,000 line switch with disc bank having ten concentric rows of line contacts. Not used commercially. Formation of Strowger Automatic Telephone Exchange. 发明1,000寻线机，其排线架拥有10排线路连接。但是并没有投入商业使用。史端乔式自动电话交换机形成。
- The CCITT High-Level Programming Language--CHILL is the standard programming language which is used for Stored Program Control(SPC)telephone exchange. CCITT高级程序设计语言CHILL是用于存储程序控制(SPC)电话交换机的标准程序设计语言本文选取并实现了一个实用的CHILL子集,命名为Mini-CHILL。
- The main attemper telephone is a special purview telephone and have the function of telephone exchange and office telephone. 主调度话机作为一个特殊权限的编程话机，具有话务总机及办公电话的一切功能。
- The Puskas brothers were planning to construct a telephone exchange in Budapest using Edison's improved telephone design. 普斯卡兄弟计画使用爱迪生对于电话的改良设计，在布达佩斯建造电话交换机。
