By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.

制革污水采预曝气处，大大提高初沉池沉淀效果。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生处技术处环氧丙烷皂污水是行之有效的。

Plymesh aeration pads are used to fluidize and to optimize the flow rate of powdered and pulverized products in silos and in bunkers.

合网通风垫，地上式青贮槽中的粉末实现流体，流速达到最佳。