signal的例句（signal在句子中的用法）

• As soon as it was dark, Mrs Evans gave the signal... 天一黑，埃文斯夫人就发出了信号。
• A radio signal has both electrical and magnetic properties. 无线电信号具有电、磁双重属性。
• We perfected a hand-signal system so that he could keep me informed of hazards... 我们完善了一套手势信号，这样他就能随时告知我什么时候有危险了。
• The transmitters will send a signal automatically to a local base station... 发射台会自动将信号发射到地方基站。
• The reception was a little faint but clear enough for him to receive the signal. 接收到的信号有点弱，但对他来说已够清晰，可以接收到。
• A thin cable carries the signal to a computer... 一根细电缆将信号传送给一台计算机。
• Hunger is the body's signal that levels of blood sugar are too low... 饥饿感是身体发出的信号，表示血糖水平太低。
• The signal will be converted into digital code. 信号会被转变为数字代码。
• The coded signal is received by satellite dish aerials. 编码信号由碟形卫星天线接收。
• When we turned the boat about, the signal began to bleep again constantly. 当我们把船调头的时候，信号器又不停地发出哔哔声。
• The flow of current actuates the signal. 电流发出了信号。