A.4.24m/s,0.3m3/s
B.2.39m/s,0.3m3/s
C.4.24m/s,0.5m3/s
D.2.39m/s,0.5m3/s
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2
[单选题]一直径d1=0.2m的圆管,突然扩大到直径为d2=0.3m,若v1=9.55m/s,则v2与Q分别为( )。A.4.24m/s,0.3m3/sB.2