“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	friction pairs friction pile friction reducing for gas transmission pipeline friction reduction stabilizer friction roller friction spinning friction spinning machine friction stir welding frictiontape friction test with slick water friction vibration friction wear testing machine friction welding friction wheel friction work Frida Kahlo Frida Kahlo Museum Frida Still Life Friday Songs Friday Weekly Fridman Fridman crater Fridrikh Markovich Ermler Fried constant Fried Egg Galaxy

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