“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	index of diversification index of drilling engineering quality index of economic liberalization index of eigenvalues index of environmental pressure index of growth index of imprimitivity index of inertia index of irregularity index of morphological typology index of multiplicity index of next larger scale charts index of nilpotency index of nutritional quality index of polydispersity index of refraction index of relative nullity index of reliability index of road freight transportation quality index of road passenger transportation quality index of road transportation safety index of rotation index of routine analysis for atmospheric pollution index of simplicity index of social progress

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。