请输入您要查询的字词:
单词
Sm-Nd dating
释义
Sm-Nd dating
Encyclopedia
理学
钐-钕定年
释
Sm-Nd dating
钐-钕定年
在Sm-Nd同位素封闭系统中,利用147Sm放出一个α粒子与能量衰变成143Nd,由衰变定律根据母体147Sm的减少量、放射成因143Nd*增加的量计算系统Sm-Nd年龄的方法。
随便看
non-Euclidean space
non-Euclidean translation
non-Euclidean trigonometry
non-Euclidean wave equation
non-Eulerian graph
noneulerian graph
nonex
non-exact square root
non eXecution(NX) bit technology
Non-executive Director
non-existence
nonexistence
nonexpansive mapping
non-expansive operator
nonexpansive operator
non-experimental design
non-explosive blasting
non-extendible solution
non-extinction
non-facet growth
non faradaic current
non-faradaic current
nonfaradaic current
nonfatal trauma
non-fatty acid in woody oil
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:2026/6/21 0:21:49