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Encyclopedia
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释
uranium
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天然放射性元素。元素符号U，原子序数92，原子量238.02891，属周期系ⅢB族，锕系元素之一。
工学
反应堆燃料系统
释
uranium
铀
一种具有天然放射性的金属元素，符号U，原子序数92。
理学
放射性元素
释
uranium
铀
天然放射性元素，元素符号U，原子序数92，原子量238.02891。属周期系ⅢB族，锕系元素。为纪念1781年发现的新行星天王星（Uranus）而命名。
Astronomy
全称：uranium。缩写：U
铀
Chemistry
＞放射化学与辐射化学＞放射性元素化学＞释义
uranium
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approximate entropy, ApEn
approximate equality
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approximate factorization method
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