“frequency down-conversion”概念、定义、翻译-科学时代

单词	frequency down-conversion
释义	机械工程词汇手册 frequency down-conversion 频率下转换
随便看	flat duck flat epithelial cell flat extra premium flat face flat-faced screen flat fading flat fading channel flat fare flat fee flat feed dog flat feed spring flat-field lens flat-field objective flat-file database flatfish flatfish flatfish flat flame burner flat flame method flat flavour flat flexible wire connector flatfoot flat formation flat furrow ploughing flat gimp

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

frequency down-conversion