“氩-氩年代测定”的概念、定义、翻译、参考文献-科学参考

单词	氩-氩年代测定
释义	氩-氩年代测定 Encyclopedia 理学核分析技术释 argon-argon dating氩-氩年代测定利用中子活化法使样品中的39K经过39K(n,p)39Ar反应转化为39Ar，然后用质谱计测定其40Ar/39Ar的比值，代替通常在钾-氩法中的40Ar/40K比值，计算岩石或矿物的地质年龄。
随便看	access control mechanism access control model access control service access control system access control system of hydropower station access control unit access cycle access denial access gateway access hole accessibility accessibility design standards accessibility facilities accessibility hierarchy accessibility of air supply accessibility of contaminant source accessibility of health service accessibility planning accessibility sampling accessibility theory accessible accessible boundary arc accessible boundary point accessible category accessible design

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。