(相关资料图)
1、收音机波段。
2、am简写=amplitude modulation 振幅调制;调幅(广播);信号高低调变度以(%)百分比表示。
本文到此分享完毕,希望对大家有所帮助。
(相关资料图)
1、收音机波段。
2、am简写=amplitude modulation 振幅调制;调幅(广播);信号高低调变度以(%)百分比表示。
本文到此分享完毕,希望对大家有所帮助。
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