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