“samarium-neodymium dating”的概念、定义、翻译、参考文献-科学参考

单词	samarium-neodymium dating
释义	samarium-neodymium dating Encyclopedia 理学核分析技术释 samarium-neodymium dating钐-钕年代测定根据样品中147Sm经α衰变形成稳定的143Nd的放射性衰变规律，以非放射成因的稳定同位素144Nd作为参考核素，测量封闭体系中147Sm/144Nd和143Nd/144Nd的含量比值，来计算样品年龄的一种放射性同位素年代测定方法。
随便看	environmental space division environmental space form environmental space orientation environmental space type environmental standard management regulation environmental standards environmental standards management environmental standard system environmental state environmental state recognition environmental statistics environmental stress of swine building environmental structure environmental subsidy environmental suit environmental supervision environmental supervision and management on environmental construction projects environmental supervision of hydropower station environmental survey satellite Environmental Sustainability Index environmental symbol environmental system Environmental Systems Engineering environmental systems engineering Environmental Systems Research Institute, Inc.

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。