Synset:Hf hafnium
Hypernyms:metal metallic element
Inherited Hypernyms:hafniummetallic elementchemical elementsubstancematterphysical entityentity
Inherited Hypernyms:hafniummetallic elementchemical elementsubstancepartrelationabstractionentity
单词 | atomic number 72 |
释义 | Atomic Number 72 nnoun.substancea grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons Synset:Hf hafnium Hypernyms:metal metallic element Inherited Hypernyms:hafniummetallic elementchemical elementsubstancematterphysical entityentity Inherited Hypernyms:hafniummetallic elementchemical elementsubstancepartrelationabstractionentity |
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