变异的非定常性  Nonconstancy of variability

不可压缩非定常流  unsteady incompressible flow

定常非对称分离涡  steady asymmetric vortices

二阶非定常热传导  two-order transient heat conduction

二维非定常非对称  two-dimensional unsteady and non-symmetric

二维非定常非对称流动  two-dimensional unsteady and non-symmetric flow fi

非定常Burgers模型  non-stationary Burgers model

非定常Navier-stokes方程  unsteady Navier-Stokes equations

非定常NS方程  unsteady N S equations

非定常N-S方程  unsteady Navier-Stokes equations; the non-stationary Navier-Stokes equations

非定常Stokes方程  non-stationary Stokes equation; compressible Stokes equations; the unsteady Stokes equation

非定常边界层  unsteady boundary layer

非定常不可压NS方程  unsteady incompressible Navier Stokes equations

非定常不可压N-S方程  unsteady incompressible Navier Stokes equations

非定常不可压流动  Unsteady incompressible flows

非定常不稳定  unsteady and unstable

非定常不稳定流动  Unsteady and Unstable Flow

非定常参数  non-stationary parameter; non-stationary parameters

非定常测量  aerodynamic measurement technique