screen fractionating的用法和樣例：
例句
- Materials that is smaller than the screen hole falls so that accomplishes the purpose.
小于篩孔尺寸的物料從篩孔落下，即獲得了篩分目的。 - The vibration screen processed through sheet cold riveting technique from USA enhances the structure reliability to make it run smoothly and increase the screening performance.
采用美國薄板冷鉚技術(shù)加工的振動(dòng)篩，增強了結構可靠性，使之運行穩定，并提高篩分性能。
