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单词 astatine
释义
Astatine
nnoun.substancea highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
Synset:At atomic number 85
Hypernyms:chemical element element halogen
Inherited Hypernyms:astatinechemical elementsubstancematterphysical entityentity
Inherited Hypernyms:astatinechemical elementsubstancepartrelationabstractionentity
Inherited Hypernyms:astatinehalogengroupabstractionentity
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更新时间:2024/9/21 22:04:59