surface flow pattern

例句：

1. 1.The surface flow pattern of the river changes with the seasons.
   河流的表面流动模式随着季节变化而变化。
2. 2.The study of surface flow patterns is crucial for understanding the behavior of water in natural environments.
   研究表面流动模式对于理解自然环境中水的行为至关重要。
3. 3. The engineer designed a new surface flow pattern to improve the efficiency of the water system.
   工程师设计了一种新的表面流动模式，以提高水系统的效率。