momentum loss thickness of boundary layer

例句：

1. 1.The study of the momentum loss thickness is crucial for understanding the flow behavior in fluids.
   研究动量损失厚度对于理解流体流动行为至关重要。
2. 2. The design of the boundary layer control system requires careful consideration of the momentum loss thickness.
   边界层控制系统的设计需要仔细考虑动量损失厚度。
3. 3. In order to improve the efficiency of the heat exchanger, it is necessary to reduce the momentum loss thickness.
   为了提高换热器的效率，有必要减少动量损失厚度。