“neptunium”的概念、定义、翻译、参考文献-科学参考

单词	neptunium
释义	neptunium Encyclopedia 理学放射性元素释 neptunium镎人工放射性元素，元素符号Np，原子序数93，半衰期最长的同位素的质量数237。属周期系ⅢB族，锕系元素。仿照以天王星命名铀的方法，以天王星外面的海王星（Neptune）命名镎。 Physics neptunium镎93Np Astronomy neptunium缩写：Np。镎 Chemistry ＞放射化学与辐射化学＞放射性元素化学＞释义 neptunium镎
随便看	partial operator-differential equation partial order partial ordered set partial ordered set, poset partial order ideal partial ordering partial ordering relation partial order length partial order relation partial order relational model partial order set partial order width partial ossicular replacement prosthesis partial parsing partial pivot partial pivoting partial plane partial polarization partial potential partial power on partial predicate partial pressure partial pressure of carbon dioxide measurement instrument partial pressure vacuum gauge partial prestressing ratios

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。