問(wèn)答題
計(jì)算層速度Vn
知:t01=1.0s,t02=2.0s,Vr1=2000m/s,Vr2=2550m/s.
求:Vn=?(取整數(shù))
計(jì)算層速度Vn
知:t01=1.0s,t02=2.0s,Vr1=2000m/s,Vr2=2550m/s.
求:Vn=?(取整數(shù))