“frequency conversion”概念、定义、翻译-科学时代

单词	frequency conversion
释义	机械工程词汇手册 frequency conversion 频率变换，变频
随便看	social object social objective social opportunity cost social opposition social optimum social optimum social order social order social order social ordinance social organic theory social organism social organism social organization social organization social organization social organization social organization social origin social origin social overhead capital social overhead capital social ownership social-pacifism social parasite

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 conversion