请输入您要查询的英文单词:

 

单词 radioactivity
释义 ra·dio·activity
\ˌrādēˌo+\ noun
Etymology: International Scientific Vocabulary radio- + activity
: the emission of radiant energy : the property, possessed by some elements (as radium, uranium, thorium, and their products) whether free or combined of spontaneously emitting alpha or beta rays and sometimes also gamma rays by the disintegration of the nuclei of atoms
随便看

 

英语词典包含332784条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 14:14:54