“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	development of ocean energy development of ovary development of pancreas development of pineal body development of pituitary gland development of pumped storage power station in China development of reservoir with bottom water development of respiratory system development of rib development of self-concept development of self-conscious emotion development of skeletal muscles development of skeletal system Development of Small Cities & Towns development of smooth muscles development of spleen development of sternum development of stomach development of testis development of the adrenal gland development of the bladder development of the brain development of the cerebellar cortex development of the follicles, follicular development development of the ganglion

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。