“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	Revised Edition of the Tiansheng Code Revised Harvard Photometry Revised New General Catalogue of Nonstellar Astronomical Objects revised Newton method revised price-earnings ratio method Revised Punctuation Manual Revised Shapley-Ames Catalog revised simplex method Revised Synopsis of Pediatric Massage Revised Wartime Measures for Publication Censorship revision Revision and Annotation on Biographies of Outstanding Poets of Tang Dynasty revision and compilation map sheet revision calculus revision control revisionist school of history revisionist school of Latin American history revision map sheet revision of process revision of topographic map revision process of national standards for production safety and health Revisions made in the Song, Yuan and Ming dynasties Revisiting the Yan Garden revisit period Revista Mexicana De Astronomia Y Astrofisica

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。