amplitude modulation signal的用法和樣例：
例句
- Crystal radios are devised for the reception of amplitude modulated AM signals.
晶體收音機是用來(lái)接收調幅信號的。 - In communications, an amplitude modulated signal in which the amplitude of the carrier is reduced to zero for some part of the cycle of the modulating waveform.
通信技術(shù)中的一種調幅信號，其載波的振幅在調制波形周期的某些部分減少到零。
