“activity”概念、定义、翻译-科学时代

单词	activity
释义	环境科学与工程词汇手册 activity 活度；放射性
随便看	man of letters man of mark man of men man of sense man of straw man of the year manograph manograph Manoilescu argument manometer manometer manometer manometer manometer manometer manometer manometer manometer manometer manometer manometer manometric manometric(al) manometric efficiency manometric flame

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。