1.  steady flow
2.  stationary flow

• 1. 稳定流: steady flow | Steady-Stream | permanent flow
• 2. 不稳定流: unsteady flow | unstable flow | irregular flow | non-stationary flow
• 3. 稳定流动: steady flow | stationary flow | Stable flow

更多释义

• 1.针对三峡—枝城河道的地形特征，建立一维不稳定流模型。
  A one-dimensional unsteady flow model is established based on the topography of the river course between the Three Gorges and Zhicheng.
  dict.yoduao.com
• 2.采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。
  The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method.
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• 3.用一维不稳定流数学模型模拟枯水期水口电站下游日调节不稳定流。
  The one dimensional model is employed to simulate the daily regulating unsteady flows below Shuikou reservoir.
  dict.yoduao.com

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