coarse air filter

基本解釋

This paper expounds the adaptibility of coarse sand filter with simultaneous air and water backwash to tertiary filtration plant.
闡述了粗石英砂氣水同時沖洗濾池，在污水深度處理中的適用性。
A disposable non-woolen filter, and a panel type washable coarse aluminum filter are installed in the front panel of return air duct of each room, to trap powder generated, if any.
在每個房間回風管的前面板上安裝有一臺一次性的非毛織品過濾器，以及一臺板式可洗粗鋁過濾器，以捕捉收集可能產生的任何粉塵。
edctrans.com
Abstract: : According to the test of evaporative air handing units, it was consisted of an inertial coarse filter, bag type filter, the hydrophilic polymer fiber filler, double fan.
以一臺蒸發(fā)冷卻空氣處理機組為測試對象，該機組設有慣性粗效過濾器、袋式中效過濾器、親水性高分子纖維填料、雙風機。