| 1. | Network channel terminating equipment for public switched digital service 公共转换数字服务的网络信道终接设备 |
| 2. | Digital service provider 数字服务供货商 |
| 3. | Telecommunications - network performance parameters for dedicated digital services - specifications 电信.专用数字服务的网络性能参数.规范 |
| 4. | Digital service increases by 50 percent or more the talk and standby times of a cellphone 数字服务使通话时间和待机时间体哦稿了百分之五十甚至更多。 |
| 5. | Isdn . 1 : electrotechnical vocabulary . chapter 716 - 1 : integrated services digital network . part 1 : general aspects 电工词汇.第716 - 1章:综合数字服务网 |
| 6. | Telecommunications - network performance parameters for dedicated digital services - definitions and measurements 电信.专用数字服务的网络性能参数.定义和测量 |
| 7. | Telecommunications - network performance parameters and objectives for dedicated digital services - sonet bit rates 电信.专用数字服务对象和网络性能参数. sonet比特速率 |
| 8. | Telecommunications - network performance parameters for circuit switched digital services - definitions and measurements 电信.线路开关数字服务的网络性能参数.定义和测量 |