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单词 atomic number 81
释义
Atomic Number 81
nnoun.substancea soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
Synset:Tl thallium
Substance Holonyms:blende sphalerite zinc blende
Hypernyms:metal metallic element
Inherited Hypernyms:thalliummetallic elementchemical elementsubstancematterphysical entityentity
Inherited Hypernyms:thalliummetallic elementchemical elementsubstancepartrelationabstractionentity
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更新时间:2024/9/21 1:24:49