“超外差接收”的概念、定义、翻译、参考文献-科学参考

单词	超外差接收
释义	超外差接收 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	basis for homology Basis for Library Science Basis for Records / Documents Management basis for urban growth basis function basis functions basis impulse level basisless basis mapping basis of a Banach space basis of a field basis of a group basis of a lattice basis of a linear space basis of a module basis of an algebra basis of an ideal basis of a root system basis of a set basis of a topological space basis of a topology basis of a vector space Basis of Chinese Reference Book basis of health supervision basis point

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。