radon
/ˈreɪdɒn/noun
mass noun
- the chemical element of atomic number 86, a rare radioactive gas belonging to the noble gas series. (Symbol: Rn)(化学元素)氡(符号: Rn)。
词源
early 20th cent.: from RADIUM, on the pattern of argon.
单词 | radon |
释义 | radon/ˈreɪdɒn/noun mass noun
词源 early 20th cent.: from RADIUM, on the pattern of argon. |
随便看 |
英汉双解词典包含131075条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。