程控用户交换机的英文

pbx:private brancn exchange

• 程控:    stored program con ...
• 用户:    user; subscriber; ...
• 交换机:    exchange board; sw ...

例句与用法

1. Specification for design of spc pabx engineering in industrial enterprises
   工业企业程控用户交换机工程设计规范
2. Abstract : this paper analyses all factors that influence the telephone connection of program - controlled customer exchangers and puts forward measures for raising the telephone connection rate
   文摘:分析了影响程控用户交换机电话接通率的各种因素，并结合实际情况指出提高电话接通率的具体措施。