pressure decreasing coefficient

例句：

1. 1.The pressure decreasing coefficient of the oil is an important factor in determining its performance.
   油的压降系数是决定其性能的一个重要因素。
2. 2.The engineer used a new formula to calculate the pressure decreasing coefficient of the fluid.
   工程师使用一种新的公式来计算流体的压降系数。
3. 3.The pressure decreasing coefficient can be used to predict the flow rate of the fluid under different conditions.
   压降系数可以用来预测在不同条件下流体的流速。