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单词 tl
释义
Tl
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 atomic number 81 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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