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- 你查询的单词是:radon ([ 'reidɔn ])
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- 解释: n. 氡
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- 例子: 1. A radioactive, inert, gaseous isotope of radon, with a half-life of3.92 seconds.
锕射气氡的一种放射性的,惰性的和气态的同位素,其半衰期为3。92秒
2. Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
射气几种氡的同位素的放射性气体,是放射性物质衰变的产物
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