1)pumicing,轻石磨光2)grinding of terrazzo,水磨石磨光3)abrasive for polishing,抛光磨石4)polishing stone,磨光石5)flint glazing,燧石磨光6)polished finish of stone,石面磨光
用法和例句
As shown by the results of difference of properties of the two kinds abrasive,the way to improve properties of Chinese abrasive for polishing was proposed.