Chinese translation for "电话交换区设计"

exchange area layout

Similar Words：

"电话交换局" Chinese translation, "电话交换局级别" Chinese translation, "电话交换控制器" Chinese translation, "电话交换区" Chinese translation, "电话交换区设备" Chinese translation, "电话交换设备总技术规范" Chinese translation, "电话交换台" Chinese translation, "电话交换台间" Chinese translation, "电话交换网" Chinese translation, "电话交换网络" Chinese translation