“镤”的概念、定义、翻译、参考文献-科学参考

单词	镤
释义	镤 Encyclopedia 理学放射性元素释 protactinium镤天然放射性元素，元素符号Pa，原子序数91，原子量为231.03588，属周期系ⅢB族，锕系元素。 Astronomy 全称：protactinium。缩写：Pa镤 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 protactinium镤
随便看	periodic nonsinusoidal current circuits periodic nonstationary process periodic operation test for steam turbine periodic optimization periodic orbit periodic oscillation periodic paralysis periodic pattern periodic permanent magnetic focusing periodic perturbation periodic point periodic pollution periodic potential periodic problem periodic process periodic radical periodic random process periodic repair method periodic resolution periodic reverse permanent magnet focusing periodic sampling periodic semigroup periodic sequence periodic set periodic signal

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。