impurity

名词 impurity:

1. worthless or dangerous material that should be removed
   同义词：dross
2. the condition of being impure
   同义词：impureness

1. The oxygen react vigorously with the impurity in the iron.
   氧气与铁中的杂质发生剧烈的化学反应。
2. The limestone absorb impurity from the ore and form a fluid slag which floats on the surface of the heavier molten iron.
   石灰石吸咐了铁矿石中的杂质，形成浮在较重的铁水表面上的流动渣。
3. Workers are removing impurities from silver.
   工人们正去除银中的杂质。
4. There are some impurities in food.
   食物中有一些杂质。

im.pu.ri.ty

n.（名词）
【复数】 im.pu.ri.ties
The quality or condition of being impure, especially:
污点，污染：不纯或不洁净的品质或状态，尤指
Contamination or pollution.
玷污或污染
Lack of consistency or homogeneity; adulteration.
搀杂；不纯：缺乏一贯性或同质性；搀杂
A state of immorality; sin.
不道德的状态；罪恶
Something that renders something else impure; an inferior component or additive.
混杂物；粗劣品：一些使得别的物质不纯净的物质；劣等的成分或附加物