由于基岩裂隙网络系统具有强烈的空间变异性，所以其中的地下水流动和溶质运移十分复杂，如何模拟这种系统中的地下水流动和溶质运移一直是一个很重要的问题。

The groundwater flow and solute transport is very complex because of the intense variability in rock network fracture. How to simulate the water flow and solute transport is a very important question.

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