“activity ratio”概念、定义、翻译-科学时代

单词	activity ratio
释义	能源科学技术词汇手册 activity ratio 放射性比
随便看	fetus period fetus period FET（field-effect transistor） feud feud feudal feudal feudal administration feudal age feudal autocratic monarchy feudal hierarchy feudalism feudalism feudalism feudalism feudalism feudalism feudalism feudalism feudalist feudality feudalization feudal land ownership feudal land property feudal law

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。