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protoactinium

n. 镤[放射元素]

镤[放射元素]

WordNet (r) 3.0 (2006) (WordNet)

protoactinium
n 1: a short-lived radioactive metallic element formed from
uranium and disintegrating into actinium and then into lead
[synonym: {protactinium}, {protoactinium}, {Pa}, {atomic number
91}]

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protoactinium	查看　protoactinium　在百度字典中的解释	百度英翻中〔查看〕
protoactinium	查看　protoactinium　在Google字典中的解释	Google英翻中〔查看〕
protoactinium	查看　protoactinium　在Yahoo字典中的解释	Yahoo英翻中〔查看〕

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