PBX的用法和樣例：
例句
用作名詞 (n.)
- This facility is important in some PBX systems which use nonstandard lines that certain modems will interpret as a dead line.
這種設備在某些專(zhuān)用小交換機系統中非常重要，這些系統用的是非標準線(xiàn)路，某些調制解調器會(huì )把它們當作死線(xiàn)路。
詞匯搭配
- common battery pbx 共電式用戶(hù)小交換機...
