... private line 专线 private telephone exchange 专用 电话交换机 probability of failure 故障几率 ...
基于1个网页-相关网页
private automatic telephone exchange 专用自动电话交换机
telephone private branch exchange [通信] 用户电话小交换机
private video telephone branch exchange 专用可视电话小交换机
video telephone private branch exchange 可视电话专用小交换机
应用推荐