“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	regular parametric representation regular parametrization regular parametrized curve regular part regular partial differential equation regular patch regular path expression regular pencil of matrices regular pentagon regular permutation regular permutation group regular perturbation regular perturbation system regular p-gon regular p group regular p-group regular point regular point of a curve regular point of a mapping regular point of an operator regular point of the boundary regular points algorithm regular point system regular polychoron regular polygon

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