A.10%~80% B.20%~80% C.10%~90% D.20%~90%
A.0.1MPa;0.01MPa B.0.01MPa;0.1MPa C.0.01MPa;0.01MPa D.0.1MPa;0.1MPa
A.50 B.150 C.50或150 D.50~150