river system pattern

例句：

1. 1.The river system pattern is crucial for the ecological balance of the region.
   河流系统模式对于该地区的生态平衡至关重要。
2. 2. The study of river system patterns has significant implications for flood control.
   研究河流系统模式对防洪具有重大意义。
3. 3.The river system pattern can be used to predict future water levels in the region.
   可以通过河流系统模式预测该地区未来水位的变化。