“钐-钕年代测定”的概念、定义、翻译、参考文献-科学参考

单词	钐-钕年代测定
释义	钐-钕年代测定 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	totally hyperbolic totally imaginary field totally imperfect set totally imperfect space totally inaccessible time totally integrable system totally invariant ideal totally irreducible totally irreducible set totally isolated ideal totally isotopic quadratic form totally isotropic space totally isotropic submodule totally isotropic subspace totally multiplicative function totally nonhomologous to zero totally nonnegative matrix totally non-perfect space totally normal space totally ordered totally ordered group totally ordered loop totally ordered ring totally ordered semigroup totally ordered set

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。