| 单词 | radon-220 |
| 释义 | radon-220 [`rā´dän ´tü`twen·tē] NUCLEAR PHYSICS The isotope of radon having mass number 220, symbol 220Rn, which is a radioactive member of the thorium series with a half-life of 56 seconds. |
| 随便看 |
|
科学参考收录了103327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。