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PU 音标拼音: [p'u] 物理部件,物理单元 物理部件,物理单元 Pu n 1: a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239 [synonym: {plutonium}, {Pu}, {atomic number 94}]
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