您要查找的是不是：
- 纯Cr镀层pure Cr coating
- 金属Cr粉末Cr metal powder
- 分析纯analytically pure
- 他将一支粉笔压成粉末。He crushed a piece of chalk to powder.
- 不纯impurity
- 纯美pure and beautiful
- 纯白的lily-white
- 粉末都沉淀到杯底了。The powder settled to the bottom of the cup.
- 纯白色的lily
- 使泥土成粉末to dust the soil
- 纯铜pure copper
- 粉末轧制powder rolling
- 不纯的impure
- 卵石被敲成粉末。The pebbles were beaten to a fine dust.
- 粉末冶金成形compacting process in powder metallurgy
- 这把汤匙是纯银的。This spoon is solid silver.
- 粉末冶金烧结powder metallurgy sintering
- 纯理论rationalism
- 化学纯chemically pure
- 薄片状粉末leafy powder
