telephone switching system
短語詞組
- automatic telephone switching system 自動(dòng)電話交換系統(tǒng);自動(dòng)
- manual telephone switching system 人工電話交換機(jī)
- Public Telephone Switching System 交換機(jī)
- mobile telephone switching system 移動(dòng)電話交換機(jī)
- toll telephone switching system 長途電話交換機(jī);長話交換機(jī)
- local telephone switching system 市內(nèi)電話交換機(jī);地區(qū)電話交換機(jī)
- STEP TELEPHONE SWITCHING SYSTEM 步進(jìn)制電話交換機(jī)
- SOHO TELEPHONE SWITCHING SYSTEM 求電話交換機(jī) 返回 telephone switching system