A.安裝高度過大 B.流量大于設(shè)計(jì)流量 C.流量小于設(shè)計(jì)流量
A.進(jìn)氣 B.漏水 C.進(jìn)氣和填料燒壞
A.1:0.7 B.1:0.65 C.1:0.8 D.1:0.75