“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	safety of nuclear weapon safety of oil and gas pipeline emergency repair safety of oil and gas pipeline maintenance safety of oil and gas testing safety of oil production downhole operation safety of oxygen systems safety of plate shears safety of pressure casting safety of railway traffic safety of sand falling cleaning operation safety of sand mixing operation safety of special equipment supervision and management safety of stamping machinery safety of transgenic medicinal resourses safety of wood planer safety of woodworking machinery safety operation of civil engineering system safety operation of crane safety operation regulation safety paper safety pedagogy safety performance safety performance evaluation safety period of fertility alteration safety pharmacology

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。