... groundwater tracer test 地下水示踪试验 groundwater unsteady flow 地下水非稳定流 groundwater withdrawal 地下水抽汲 ...
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According to geologic model of unsteady groundwater flow in heterogeneous medium and adopting the finite difference solution, the direction and strength of oil gas migration can be quantified.
根据非均匀各向异性地层的非稳定的地下水流动模型，采用有限差分法求解，可以定量判断油气运移的方向及强度。
The paper solved unsteady groundwater flow equation with the mentioned disperse pattern and the results have shown its stabilize astringency.
本文用它求解非稳定流地下水运动方程，并证明了算法稳定性及收敛性；
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