正是这些形形色色的?杂质?，才构成了五彩必缤纷的世界，才组成多姿多彩的生活。
These kinds of? Impurities? The colorful, constitute the world will profusion colorful life composition.
大理石由石灰岩或白云岩变化而来的一种变质岩，常有不规则的杂质色块，专门用于建筑和雕塑。
A metamorphic rock formed by alteration of limestone or dolomite, often irregularly colored by impurities, and used especially in architecture and sculpture.
致色杂质降低了高岭土的亮度并限制了它的应用范围。
Discoloring impurities lowers the brightness of kaolin and limits its use.
应用推荐