短語詞組短語back -flushing type unit 反沖洗型裝置automatic back -flushing 自動(dòng)反沖洗Online back -flushing 在線反清洗Automatic Back -flushing Filter 自動(dòng)反沖洗濾器Continuous Filtration Even During Back -Flushing 連續(xù)過濾即使在背沖 返回 back flushing