“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	Central Guizhou urban agglomeration Central Health Laboratory Office central heating heat load central heating water treatment Central Hebei Area Pictorial Central Hidroeléctrica Francisco Morazán central hot water supply system central hyperplane arrangement central idempotent central idempotent element central ignition central image central immune organ central immune tolerance central index central industry Central Institute for Vocational and Technical Education Central Institute of Arts and Crafts Central Institute of Fine Arts Central Institute of the Geological Survey Central Intelligence Agency central intensity central invariant subgroup Central Iron and Steel Research Institute central isomorphism

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。