| 单词 | superheterodyne receiver |
| 释义 | superheterodyne receiver(ˌsuːpəˈhɛtərəˌdaɪn) noun a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal Sometimes shortened to: superhet Word origin C20: from super(sonic) + heterodyne |
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