“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	construction method of tunnel and underground engineering construction noise management construction of aquatic plant planting Construction of Barrier Free Environment construction of beautiful countryside construction of county-level comprehensive archives in China's central and western regions Construction of CPC Style and Clean Government Construction of Environmental Protection Facility construction of grid roof construction of ground station construction of health monitoring system of civil engineering construction of high order elements construction of high-standard farmland construction of information dissemination mechanism construction of irreducible polynomials construction of Lyapunov function construction of market credit system in water conservancy construction industry construction of mechanical and electrical engineering construction of model for combustion reaction construction of new socialist countryside construction of new tea gardens construction of Paris by Henry IV construction of Paris During the Renaissance construction of pavement construction of police education and training base

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。