“钐-钕定年”的概念、定义、翻译、参考文献-科学参考

单词	钐-钕定年
释义	钐-钕定年 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	trigonal carbon trigonal crystal system trigonal dipyramid trigonal hybridization trigonalizable trigonalizable element trigonalizable matrix trigonal lattice trigonal planar configuration trigonal point trigonal residue trigonal system trigonalyids trigondodecahedron trigoneutism trigono- trigonometric trigonometric addition formula trigonometrical trigonometrical form of complex number trigonometrically conjugate functions trigonometrical sum trigonometric angle trigonometric approximation trigonometric approximation polynomial

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。