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

单词	private automatic branch exchange
释义	信息与系统科学词汇手册 private automatic branch exchange 专用自动小交换机，用户自动小交换机
随便看	insulation board insulation breakdown insulation can insulation class insulation construction insulation coordination insulation cost insulation efficiency of heat supply pipeline insulation fault detecting instrument insulation floor insulation material insulation potential insulation power factor insulation resistance insulation resistance insulation resistance insulation resistance insulation resistance coefficient insulation resistance meter insulation resistance test insulator insulator insulator insulator insulator

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。