出典:Wiktionary
impure + -ity. From Middle French impurité, from Latin impuritas.
impurity (countable かつ uncountable, 複数形 impurities)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/03 09:13 UTC 版)
Impurities are substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound.
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