reversed air classifier

例句：

1. 1. The reversed air classifier is an essential tool for sorting and purifying air.
   反向空气分类器是筛选和净化空气的关键工具。
2. 2. In the manufacturing industry, the reversed air classifier is used to remove impurities from the air beforeit reaches the production line.
   在制造业中，反向空气分类器用于在将空气输送到生产线之前去除其中的杂质。
3. 3.The reversed air classifier has proven to be highly effective in reducing noise pollution in urban areas.
   反向空气分类器已被证明在减少城市地区的噪音污染方面非常有效。