Haggenmacher equation

例句：

1. 1. The Hagen-Maier equation is used to describe the behavior of a fluid in a turbulent flow.
   哈根-马赫方程用于描述湍流中流体的行为。
2. 2. The Hagen-Pohl equation is used to calculate the heat transfer coefficient for a given temperature difference andsurface area.
   哈根-波尔方程用于计算给定温差和表面积的热传递系数。
3. 3. In engineering, the Hagen-Maier equation is used to predict the pressure drop in pipes under different flow conditions.
   在工程中，哈根-马赫方程被用来预测不同流动条件下管道中的压降。