优选词，正式主题词
Impurity
定义
某概念特定涵义的完全解释- 1. A chemical role played by any unwanted chemical substance inside a confined amount of liquid, gas, or solid, which differs from the chemical composition of the material or compound. For example, an impurity can be an undesired by-product of a chemical reaction or manufacturing process, a drug contaminant, or can be created upon degradation during storage. (Ontobee, ChEBI). 2. the fact that a substance is dirty or lower in quality because it is mixed with another substance, or something that causes this (Cambridge). 3. impurities are chemical substances inside a confined amount of liquid, gas, or solid. They differ from the chemical composition of the material or compound. (Wikipedia)
上位概念
上位概念其它语言
其它语言中概念术语- Impurity
URI
https://purls.helmholtz-metadaten.de/skosmos/sdv/Impurity