n.通氣；充氣
This is true for BOD removal, aeration and biological growth. 這對生化需氧量的去除，通氣，生物生長都是適用的。
Finally, examples of the device of cyclone aeration flotation are illustrated. 最后給出了旋流充氣氣浮的污水處理裝置的應(yīng)用實例。
n.排氣(通風(fēng))
