壁面剪应力设计方法，从理论上把塞流顶替、低速顶替及紊流顶替技术统一起来。

Wall shear stress method integrates the plug flow displacing, the low speed displacing and the turbulent flow displacing methods in theory.

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在此基础上，导出了适用于圆管的运动微分方程序。据此研究了非牛顿流体圆管紊流流场及两种非牛顿流体在圆管中的顶替规律。

Then, based on that, the turbulent motional differential equation for a pipe is made out From that, the turbulent flow and displacement laws for non-Newtonian fluids in a pipe have also been studied.

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在此基础上，导出了适用于圆管的运动微分方程序。据此研究了非牛顿流体圆管紊流流场及两种非牛顿流体在圆管中的顶替规律。

Then, based on that, the turbulent motional differential equation for a pipe is made out From that, the turbulent flow and displacement laws for non-Newtonian fluids in a pipe have also been studied.

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