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工学
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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
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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
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Chemistry
>放射化学与辐射化学>放射性元素化学>释义
uranium
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随便看
Folk Museum of Dingcun Village in Linfen
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folk song movement
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folk song of Yugur nationality
Folk Song Opera Performance Center of Longyan County
folk songs and ballads
Folk Songs Collected by Pu Songling
folk songs of Blang nationality
Folk Songs of States
Folk Songs of Wu
Folk Songs of Yue Area
folk song troupe
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folk story of the destined-to-fail arrow
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