Strong two dimensional effect on the field penetrating speed should be included in the fluid analysis for a plasma space distribution with high density gradient.

对于等离子体空间分布存在较大的密度梯度的物理问题，必须考虑二维空间特性对磁场渗透速度的影响。

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In the model the fluid density variation due to solution concentration change and the head distribution variation resulted from the fluid density change are considered.

模型考虑了地下水中溶解盐分浓度变化引起的地下水密度的改变，及其导致的地下水水头的变化。

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In the model the fluid density variation due to solution concentration change and the head distribution variation resulted from the fluid density change are considered.

模型考虑了地下水中溶解盐分浓度变化引起的地下水密度的改变，及其导致的地下水水头的变化。

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