private branch exchange
Telephony
noun
An exchange on private premises by which private lines may be connected to a public network; abbreviated PBX.
Origin
Early 20th century.
| 单词 | private branch exchange |
| 释义 | private branch exchangeTelephony noun An exchange on private premises by which private lines may be connected to a public network; abbreviated PBX. Origin |
| 随便看 |
英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。