“砹”的概念、定义、翻译、参考文献-科学参考

单词	砹
释义	砹 Encyclopedia 理学放射性元素释 astatine砹人工放射性元素，元素符号At，原子序数85，半衰期最长的同位素的质量数210，属周期系ⅦA族，卤族元素。英文名称来源于希腊文astatos（不稳定）。 Astronomy 全称：astatine。缩写：At砹 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 astatine砹
随便看	first order first-order first-order aberration first order and second order phase transitions of superconductor first-order arithmetic first-order characteristic model based adaptive control first order circuit first order coherence first-order coherence first-order derivative first-order design first-order difference first-order differential first-order differential equation first-order efficiency first-order efficient estimator first-order equation first-order formula first-order functional calculus first-order hold first order induction schema first-order language first order logic first-order logic first-order memristor

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。