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- Their signal service was rudimentary. Radar was unknown to them. 他们的通信设施很不健全，他们还不知道有雷达。
- During these weeks of intense struggle and ceaseless anxiety, Lord Beaverbrook rendered signal service. 在战斗非常激烈，令人无限忧虑的这几个星期里，比弗布鲁克勋爵作出了杰出的贡献。
- standard frequency and time signal service 标准频率和时间信号业务
- Senior Chief Officer Shore Signal Service 海岸通信主任
- Signal Corps Aircraft Signal Service 通信兵飞机通信勤务
- Signal Corps Ground Signal Service 通信兵地面通信勤务
- emergence signal service message 紧急公务电报
- emergency signal service message 紧急公务电报
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
- Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
- A red lamp is often a danger signal. 红灯常常是危险的信号。
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- activate and maintain signaling service 激活和维护信令服务
- The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
- CLASS Customized Local Access Signaling Service 定制的本地接入信令服务
- CLASS: Custom Local Area Signaling Service 自定义本地信令服务
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- personal radio signaling service 个人无线寻呼业务
