编码信号由碟形卫星天线接收。The coded signal is received by satellite dish aerials.塞西尔此时开始慌张起来，连忙发射了两枚遇险信号火箭。Cecil now began to panic and fired off two distress rockets.声音信号可以通过电缆传送而不失真。Audio signals can be transmitted along cables wi...
There may appear to be discontinuities between broadcasts.广播节目中可能会出现断音。The BBC broadcasts to all parts of the world every day.英国广播公司每天对世界的所有地区广播.She found the wavelength of their broadcasts, and left the radio tuned to t...