| 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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