Volcanic explosion craters such as Dallol form during phreatic eruptions—where rising magma comes into contact with water beneath the surface of the Earth, causing a steam explosion.
像宽干谷这样爆裂的火山口形成于蒸汽喷发的过程中，在那里，上升的岩浆与地表下的水接触形成了蒸汽喷发。
The segment of the boundary above the water table and below the phreatic surface is called the seepage face.
水面以上和潜水面以下的一段边界叫做渗出面。
Stormflow consists of phreatic water, surface runoff and weather horizon-passing rain. The rise and drop of their discharge are consistent with that of the river discharge after rain.
潜水河雨后地表径流由地表下潜水、雨水地面上径流、雨水风化层径流构成，三部分水均随河道流量的增减而增减。
In the seepage theory, the current expression of boundary condition on phreatic surface is aimed at a kind of seepage.
渗流理论中现有的潜水面边界条件表达式是针对特定方向的一类潜水渗流问题而给出的。
Because the phreatic water surface is connected with atmosphere and its re-charge mainly comes from atmospheric precipitation, its movement is close impacted by atmosphere.
潜水面是与大气相通的，潜水的补给也主要是大气降水，潜水水流的运动与大气存在紧密的联系。
Therefore whether the approach to locate the phreatic surface is appropriate or not is essential to the accuracy of the stability analysis.
因此确定浸润面位置的方法正确与否，对稳定性分析的结果是否准确至关重要。
Therefore whether the approach to locate the phreatic surface is appropriate or not is essential to the accuracy of the stability analysis.
因此确定浸润面位置的方法正确与否，对稳定性分析的结果是否准确至关重要。
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