complex gradient

例句：

1. 1.The complex gradient of the terrain is a significant factor in navigation.
   地形的复杂梯度是导航的一个关键因素。
2. 2.The study of complex gradients is crucial for understanding earthquake dynamics.
   研究复杂梯度对于理解地震动力学至关重要。
3. 3. In this case, the complex gradient of the soil was causing the slope to fail.
   在这种情况下，土壤的复杂梯度导致了斜坡的失稳。