“half-life period”的概念、定义、翻译、参考文献-科学参考

单词	half-life period
释义	half-life period Encyclopedia 历史学考古测年释 half-life period半衰期处于某一特定能态的放射性原子核的数目或活度衰减到原来值的一半所需的时间。
随便看	ecological strategy theory ecological stress ecological study ecological succession Ecological suitability ecological suitability ecological suitability assessment ecological system ecological systems theory ecological tea gardens ecological theology ecological theory of administration ecological threshold ecological town ecological transition ecological treatment model of rural domestic sewage ecological trend study ecological type ecological unit ecological validity ecological value ecological value of forest ecological veterinary science ecological view of Chinese landscape architecture ecological water

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。