A.不大于1m/s B.不大于2m/s C.不大于3m/s D.不大于10m/s
A.高于熱風壓力0.15MPa B.大于熱風壓力0.25MPa C.大于熱風壓力0.10MPa
A.0.1MPa B.0.15MPa C.0.35MPa D.0.5MPa