evolution of pattern

• 地表水

evolution of pattern的用法和样例：

例句

1. The quality of the ground water made some improvement.
   地表水水质有所改善。
2. The karat affects various processes in the whole hydrologic cycle and leads to dynamic evolution of the interaction between the surface water and ground water.
   成层岩溶影响到多个水文过程，地表水与地下水转换随着岩溶发育而动态变化。