“radium”的概念、定义、翻译、参考文献-科学参考

单词	radium
释义	radium Encyclopedia 理学放射性元素释 radium镭天然放射性元素，元素符号Ra，原子序数88，半衰期最长的同位素的质量数226，属周期系ⅡA族，碱土金属元素。英文名来源于拉丁文radius（射线）。 Physics radium镭88Ra｛化｝ Astronomy radium缩写：Ra。镭 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 radium镭
随便看	commutative law of multiplication commutative Lie algebra commutative Lie group commutative Lie ring commutative loop commutatively convergent series commutative matrices commutative monoid commutative multiplication commutative operation commutative operator ring commutative operators commutative ordinal numbers commutative product commutative property commutative relation between differential operation and variational operation commutative ring commutative ringed space commutative scheme commutative semigroup commutative subgroup commutative subspace lattice commutative superalgebra commutative valuation commutativity

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。