phreatic rise

例句：

1. 1.The phreatic rise is a natural phenomenon that occurs when groundwater rises to the surface due to changes in temperature or pressure.
   泉水上升是一种自然现象，当地下水因温度或压力变化而上升到地表时会发生。
2. 2. During the summer, the phreatic rise can be seen as a result of increased rainfall and melting snow.
   在夏季，泉水上升可以看作是降雨量增加和积雪融化的结果。
3. 3. The phreatic rise is an important indicator of water availability in a region, as it provides evidence of the undergroundwater table's level.
   泉水上升是该地区水资源可用性的一个重要指标，因为它提供了地下含水层水位的证据。