多项选择题
A.X-1201A B.X-1203A C.X-1200A D.X-1204A
A.14TV-0006MV下降 B.14Ti0001下降 C.13PDI0065下降 D.X-1402下渣时电流上升
A.氧煤比应适当降低 B.煤粉密度明显下降 C.13FI0047明显下降