neptunium meaning in Chinese
n.
【化学】镎〔旧译?〕。
Examples
- Standard guide for determination of neptunium - 237 in soil
测定土壤中镎237的标准指南 - Standard test method for measuring reaction rates by radioactivation of neptunium - 237
用镎237的放射激活性测定反应速率的测试方法 - Nuclear energy . technology of nuclear fuel cycle . determination of neptunium in nitric acid solutions by molecular absorption spectrophotometry
核能.核燃料循环技术.分子吸收分光光度法测定硝酸溶液中的镎 - Since the half - lives of neptunium - 237 and its daughter radionuclides are relatively short comparing to the age of the earth , these radionuclides are not present in the earth nowadays
由于- 237及其子体核素的半衰期远低于地球的年，它们现已不存在于地球上。相反， - One of important methods in separation of neptunium from u , pu is selectively reducing np ( vi ) to np ( v ) which cannot be extracted by 30 % tbp / ok , while the valence of u , pu remains stationary
其中一个重要的思路就是将np ( )选择性地还原为不被30 tbp煤油萃取的np ( ) ，同时保持u 、 pu的价态不变，从而实现np与u 、 pu的有效分离。