英语翻译The carrier wave,when the baseband signal is added to it,modulates (changes) the frequency of the carrier wave to the frequency licensed to the station.

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英语翻译
The carrier wave,when the baseband signal is added to it,modulates (changes) the frequency of the carrier wave to the frequency licensed to the station.

当基带的信号附加到载体波上时,调节载体波的频率,使之与许可站的频率一致.

感觉里面很多专业术语,没有背景知识很难猜测具体是指代什么,请问这句话出自哪里,具体的描述对象大概是什么?

载波,基带信号时,添加到它,并调制(变化)的载波频率的频率许可车站。

载波,当基带信号将被添加到它,调制(变化)的载波频率许可去基站。