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单词 thorium-228
释义
Thorium-228
nnoun.substanceradioactive isotope of thorium with mass number 228
Synset:radiothorium
Hypernyms:Th atomic number 90 thorium
Inherited Hypernyms:thorium-228thoriummetallic elementchemical elementsubstancematterphysical entityentity
Inherited Hypernyms:thorium-228thoriummetallic elementchemical elementsubstancepartrelationabstractionentity
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更新时间:2024/9/22 11:31:31