A.0.1 B.0.2 C.0.3
A.沖天爐(冷風爐,鼓風溫度≤400℃)摻風系數(shù)規(guī)定為4.0 B.沖天爐(熱風爐,鼓風溫度>400℃)摻風系數(shù)規(guī)定為2.5 C.其它工業(yè)爐窯鍋爐空氣系數(shù)規(guī)定為1.7 D.熔煉爐、鐵礦燒結爐按實測濃度計
A.20cm,較大 B.30cm,較大 C.20cm,較小