centrex
英['sentreks]
美['sentreks]
- n.中央交换
详细释义
Noun:
-
(CENTRal EXchange) a kind of telephone exchange
用法讲解
- centrex system 集中式小交换机系统...
- centrex service 集中交换业务...
- customer centrex 用户合用交换机...
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