您要查找的是不是：
- CCIS occurs over a separate packet switched digital network. 独立的分组交换数字网络中使用CCIS。
- SDB Switched Digital Data Interconnect 交换数字广播
- SDVB Switched Digital Video Broadcast 交换式数字视频广播
- PSDDS Public Switched Digital Data Service 公用交换数字数据业务
- PSDN Public Switched Digital Network 公共交换数字网
- HSSDS High Speed Switched Digital Service 高速切换式数字服务
- packet switched digital data network 分组交换数字数据网
- circuit switched digital circuitry 线电路数字网络
- Integrated Switched Digital Network 综合转换数字网
- public switched digital capability 公用数字交换能力
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- public switched digital data service 公用交换数据业务
- data-phone switched digital service 数据电话数字交换业务
- dataphone switched digital service 数据电话交换数字业务
- Our glasses have been switched this is mine. 咱们的玻璃杯对调了－－这个是我的。
- I grope for the light switch in the dark room. 我在黑洞洞的屋里摸索著寻找电灯开关。
- The first consideration when switching digital signals is providing adequate bandwidth to preserve the frequency harmonics of the digital pulse and their power spectral distribution. 切换数字信号时需要考虑的第一项因素是提供足够的带宽，以保护数字脉冲的高次谐波及其功率谱分布。
- The switch on the kettle won't stay down. 这个水壶上的开关按下时卡不住了。
- The block becomes magnetic when the current is switched on. 通电时线圈即具磁性。
- The loop becomes magnetic when the current is switched on. 通电时线圈就会有磁性。
