A.降低焦炭產(chǎn)量B.影響焦炭質(zhì)量C.縮短焦?fàn)t壽命D.不易形成生焦
A.0.2-2B.0.4-3C.0.5-2D.0.5-3
A.0.5mB.1.0mC.0.2mD.0.4m