“radioactivity”概念、定义、翻译-科学时代

单词	radioactivity
释义	物理学词汇手册 radioactivity 放射性，放射性活度
随便看	screen undersize screen wall screen wall screen wall counter screenwriter screenwriter screenwriter screenwriter screenwriting scree plot scree test scree test screeve screw screw screw screw screw agitator screw antenna screw auger screw axis screw axis screw base screw cap screw coal conveyor

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。