A.1度 B.0.5度 C.0.3度 D.0.2度
A.0.25m/s,6m/s B.0.15m/s,6m/s C.0.25m/s,4m/s D.0.15m/s,4m/s
A.靜壓差 B.位壓差 C.速壓差 D.總壓差