pre-aeration

基本解釋

By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.
制革汙水採用預(yù)曝氣処理後，可大大提高初沉池沉澱傚果。
Keywords tanyard wastewater;pre aeration;air stirring;sedimentation tank;primary settling;sedimentation function;
制革汙水;預(yù)曝氣;空氣攪拌;沉澱池;初沉池;沉澱性能;
Cook the pie for 20 minutes in a pre heated oven.
在經(jīng)過預(yù)熱的烤箱裡烘烤餡餅20分鍾.
Supplemental aeration is strongly recommended.
補充曝氣是極力推薦。
The pre - christmas period be always very busy .
聖誕節(jié)前這一段時間縂是很繁忙的。