digital switch
短语词组
- digital local switching 数字式市内交换
- service digital telephone switching 数字电话交换业务
- digital telephone switching 数字电话;数字程控交换机
- digital pc switching system 数字程控交换系统
- digital SPC switching equipment 数字程控交换设备
- Digital Data Switching Matrix 数字数据开关阵列
- digital data switching 数字数据交换
- digital SPC switching 数字程控交换
- digital telephone switching service 数字电话交换业务 返回 digital switch