“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	law of transformation law of transitivity of identity law of transposition law of treaties law of truly large numbers law of uneven economic and political development of capitalism in imperialist period law of universal gravitation law of variance law of vocational and technical training law of wages Law of Writing law of young crop law on administration of sea areasuse law on adopted heir law on authorized size of administrative organs law on control of hazardous substances law on control of solid wastes pollution law on exploration and exploitation of the resources of deep seabed area law on foreign exchange control Law on Higher Education and Research Law on Illegal Collection of Banned Books Law on Information, Information Technology and Information Protection law on inspection and protection of inheritance succeeded by orhpans law on inspection of import and export commodity Law Online

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