请输入您要查询的字词:
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
pole of a great circle
pole of a hyperplane
pole of a line
pole of a matrix
pole of a matrix function
pole of an analytic function
pole of a network
pole of angular momentum
pole of an inversion
pole of a plane
pole of a point group
pole of a polar plane
pole of a polar system
pole of a quadratic differential
pole of a quadric hypersurface
pole of a quadric surface
pole of a Riemannian manifold
pole of a rolling curve
pole of a sphere
pole of a system
pole of a system of coordinates
pole of figure
pole of first order
pole of orbit
pole of order n
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/7/30 9:35:27