定常态 meaning in Chinese

constant state

Convective boundary layer ; quasi - stationary ; heterogeneous ; large - eddy simulation
对流边界层准定常态非均匀大涡模拟
Quasi - stationary state of convective boundary layer over heterogeneous flat surfaces
平坦非均匀地面对流边界层的准定常态
Power and efficiency characteristics for steady flow irreversible carnot engine with heat leak
有热漏时定常态不可逆卡诺热机功率效率特性
Wavelengths or scales of surface heterogeneity are less than 20km . simulation results show that cbls do reach a quasi - stationary state correspondent to specified surfaces , after a long enough evolution . in this transition process and after that , horizontal statistics , i . e . mean potential temperature and vertical heat - flux , show profiles little differences to those over homogeneous flat surface . main effect of surface heterogeneity is to increase kinetic energy in cbl and the increase concentrates in the direction of surface heterogeneity . the time of cbl spent to reach its first peak of mean kinetic energy ,
模拟结果表明，在充分长的时间后，边界层达到一种适合于地面条件的准定常态。这种准定常态和向其过渡的过程中，水平平均的边界层廓线性质，如平均位温廓线垂直热通量廓线等几乎与平坦均匀地面的结果相同，或差异极小。地面非均匀性的主要作用是使边界层动能增大，并以地面非均匀性变化方向的动能增加为主。