木板哪怕沾了一点水，局部的摩擦系数就会改变。
A little bit of water on the plank would locally make the friction coefficients larger.
在10,000 ~ 90,000的高雷诺数范围内，测量了流动摩擦系数、局部和平均对流换热系数。
In high Reynolds number range of 10,000 ~ 90,000, the flow friction factor, local and average convection heat transfer coefficients were determined.
通过有限元模拟，进一步研究了整形温度、摩擦系数对最大载荷的影响规律，为此类零件的局部精整工艺制定提供了理论参考。
Then the FEM simulation was applied to study the influence of friction factor and initial forging temperature on maximum forming force, which provided reference on finishing process for similar parts.
通过有限元模拟，进一步研究了整形温度、摩擦系数对最大载荷的影响规律，为此类零件的局部精整工艺制定提供了理论参考。
Then the FEM simulation was applied to study the influence of friction factor and initial forging temperature on maximum forming force, which provided reference on finishing process for similar parts.
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