a machine, circuit, or component that changes an alternating current of one frequency into one of another frequency; spec. in a superheterodyne…
单词 | θ198280 |
释义 | society > communication > telecommunication > [noun] > signal > frequency or band of frequencies > frequency changer (2) frequency changer1902 a machine, circuit, or component that changes an alternating current of one frequency into one of another frequency; spec. in a superheterodyne… frequency converter1909 a frequency changer. |
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