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单词 radium
释义
Radium
nnoun.substancean intensely radioactive metallic element that occurs in minute amounts in uranium ores
Synset:Ra atomic number 88
Substance Holonyms:uranium ore
Hypernyms:metal metallic element
Inherited Hypernyms:radiummetallic elementchemical elementsubstancematterphysical entityentity
Inherited Hypernyms:radiummetallic elementchemical elementsubstancepartrelationabstractionentity
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更新时间:2024/11/11 0:58:39