“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	statement of periodical cease publication statement of periodical republishment statement of periodical time-out Statement of Principles Statement on Intellectual Freedom in Libraries statements written Statement Validity Assessment statement validity assessment state military geography state minimization state monitoring of power apparatus state monopily over purchase and marketing of agricultural products state monopoly State Monopoly Agent state monopoly capitalism state monopoly for marketing state monopoly for purchase and marketing state monopoly for purchase and marketing of grain state monopoly of the purchase and marketing State Museum of History of Uzbekistan state-nation State National Education Standards State Nobility: Elite Schools in the Field of Power State Nuclear Power Technology Corporation state observer

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。