A.輻射吸熱量減少,再熱汽溫升高; B.輻射吸熱量增加,再熱汽溫降低; C.輻射吸熱量減少,再熱汽溫降低
A.火焰暗色; B.火焰紊亂; C.著火不穩(wěn)定; D.火焰中放藍花
A.筒型球磨機; B.平盤磨; C.風扇磨