A.20-70KPa B.30-70KPa C.40-70KPa D.50-70KPa
A.0.1-0.6MPa B.0.2-0.6MPa C.0.3-0.6MPa D.0.4-0.6MPa
A.氣壓 B.氣體 C.氣泡 D.氣流