“francium”的概念、定义、翻译、参考文献-科学参考

单词	francium
释义	francium Encyclopedia 理学放射性元素释 francium钫天然放射性元素，元素符号Fr，原子序数87，半衰期最长的同位素的质量数223，属周期系ⅠA族，碱金属元素。为纪念发现者M.佩雷[注]的祖国法国（France）而命名。 Astronomy francium缩写：Fr。钫 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 francium钫
随便看	four major Chinese carps breeding four major Chinese carps seed culture four-man bobsleigh four master poets of the Yuan Dynasty Four Masters of Haiyang Four Masters of the Southern Song Dynasty Four Masters of the Yuan Dynasty four-matrix four modernizations synchronization strategy Four Modernizations (the modernization of agriculture, industry, national defense, and science and technology) four-momentum Four Monks Four Moods four-muon event four natures four natures and five flavours four Noble Truths four nonmaleficence four o'clock family Four Orthodox Caliphs Four Pairs of Lovers Four Person Curling Four Personnel Bureaus under Board of Civil Off ice four phase coexistence point Four Piece Bedding Set

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