“radon”的概念、定义、翻译、参考文献-科学参考

　

单词	radon
释义	radon Encyclopedia 医学天然放射性释 radon氡原子序数为86的天然放射性元素。其元素符号为Rn，通常的单质形态是气体，无色无味，化学性质稳定。理学放射性元素释 radon氡天然放射性元素，元素符号Rn，原子序数86，半衰期最长的同位素的质量数222，属周期系0族，为稀有气体。有时又称为射气。 Physics radon氡86Rn｛化｝ Astronomy radon缩写：Rn。氡 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 radon氡
随便看	fountain clock steered time scale fountain code fountain effect fountain model fountain moss fountain pump fountain solution Four Academies established by Emperor Wen of Liu Song four-acceleration four accompanying supports of aircraft materiel four acoustic properties of speech sounds four acts and one prologue four agricultural subsidies Fourah Bay College Four-arched Pagoda four arithmetic operations four articulations four aspects four aspects of assessment and six criteria for removal from office four attacking skills four axioms of quantum mechanics four-axis coordinate system four-axis mounting four-ball test machine Four Banks of South-China

　

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