“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	noncommensurable non commercial advertisement non-communicable chronic diseases noncommunicable diseases epidemiology noncommutabililty noncommutability non-commutative noncommutative noncommutative algebra noncommutative algebraic geometry noncommutative diagram noncommutative differential geometry noncommutative differential topology noncommutative domain noncommutative dynamical system noncommutative ergodic theory noncommutative field noncommutative function space noncommutative geometry noncommutative global analysis non-commutative group noncommutative group noncommutative harmonic analysis noncommutative integral noncommutative integral domain

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