“private branch exchange”概念、定义、翻译-科学时代

单词	private branch exchange
释义	信息与系统科学词汇手册 private branch exchange 专用小交换机，用户小交换机，内部分线交换机
随便看	open approach open approximant open architecture open architecture Open Archives Initiative Open Archives Initiative (OAI) Open Archives Initiative (OAI) Open Archives Initiative--Open Archives Initiative (OAI) open arc lamp open area open area excavation open association open auction open back open back open bacterial bed open basin open bearing open bearing open-belt drive Open Beta open bid open bidding open bidding open bidding or tendering

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。