... 群占线信号 group busy signal 天线信号aerial signal 延时线信号 delay line signal ...
双语例句
1
Think about buying an aerial with a built-in signal amplifier, especially if the television set is more than 20 feet (six metres) away.
特别是如果电视机与天线距离超过超过20英寸(6米)，就得考虑买一个内置信号放大器的天线。
2
The aerial which sends out the signal and receives the reflected signal is pointed straight at the aircraft.
发射出信号并接受返回信号的天线是直接指向飞机的。
3
The antenna (known as the "aerial" in some countries) is the first component in the receiver RF-signal chain and the last one in the transmitter chain.