“superheterodyne receiving”的概念、定义、翻译、参考文献-科学参考

单词	superheterodyne receiving
释义	superheterodyne receiving Encyclopedia 工学【通信基础理论】释 superheterodyne receiving超外差接收将接收到的已调高频信号（即调制后的高频信号）送到混频器，然后与本地振荡器所产生的高频信号进行混频，在其输出端得到的波形包络形状与输入高频信号相同，但频率却降为某一固定中间频率（简称中频）的信号接收技术。
随便看	three n-j symbols three-n-j symbols three Noble Truths Three-North Shelterbelt Program Three-north shelterbelt program Three Notes of ShiJi Three Novels by Yang three-old-men comic talk three olds renewal of Guangzhou three on three basketball three-opening dramatic stage in Yu County Three Opera Sages Three Pagodas of Chongsheng Temple in Dali Three Parallel Rivers of Yunnan Protected Areas World Natural Heritage Three Parallel Rivers Scenic and Historic Area three-parameter three-parameter family three parameter logistic model three-parameter logistic model Three Partitions of Poland three parts of the body(the upper ,middle,lower) Three Passes Three Passes Banquet three perching egrets three-person keelboat of Summer Paralympics

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