“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	Crop Science Society of China，CSSC Crop Science Society of Japan, CSSJ Crop Science Society of the Philippines crop seed testing crop shear crop smart management crop straw carbonization crop straw carbonization engineering crop straw returning crop structure adjustment crop system crop system modeling crop transpiration crop transplanting crop water requirement crop water requirements crop water utilization efficiency crop yield crop yield estimation by remote sensing croquet C-ROSS cross cross action cross aldol condensation cross analysis

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