permanent flow

• 恒流,定常流

permanent flow的用法和样例：

例句

1. In this paper, the effects of solidity of rotor-stator cascades on axial-flow compressor performance are investigated with steady and unsteady flow calculation.
   采用定常流和非定常流计算方法研究了各种动静叶稠度组合对轴流压缩机性能的影响。