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关注：1
2013-05-23 12:21
求翻译：AF stands for audio frequencies—usually, sounds that you can hear. RF, or radio frequencies, are the actual frequencies of the radio signals (or TV, or cell phone, etc.). IF, or intermediate frequencies, are generally somewhere between RF and AF. In a receiver, it is usually advantageous to convert RF signals to a lowe是什么意思？ 待解决
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- 离问题结束还有
AF stands for audio frequencies—usually, sounds that you can hear. RF, or radio frequencies, are the actual frequencies of the radio signals (or TV, or cell phone, etc.). IF, or intermediate frequencies, are generally somewhere between RF and AF. In a receiver, it is usually advantageous to convert RF signals to a lowe
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2013-05-23 12:21:38
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2013-05-23 12:23:18
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2013-05-23 12:24:58
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2013-05-23 12:26:38
房颤站立的音频频率 — — 通常情况下，你可以听到的声音。射频或无线电频率的无线电信号的实际频率 (或电视或手机，等.)。如果，或中间频率，在某个地方一般都是射频与房颤。在一个接收器，它有利于通常将射频信号转换为较低如果在获得更多实际的方法，获得的是哪个或选择性。这些如果信号然后进一步转换为房颤和进一步放大，因此他们可以用来驱动耳机或扬声器。
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2013-05-23 12:28:18
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