第三天，土地形成，地下的水流上形成干燥地带。
On day three, land is formed to make dry spots from the waters below.
地下水流是水于地下蓄水层或地下水位线以上的空间流动。
Subsurface flow is the flow of water underground, in the vadose zone and aquifers.
这跟地下深处那股水流的沸腾方式有关。
气体逸出可引起地下水流量、水位和温度的显著变化。
The gas spilling can make notable variation of the groundwater flow, water level and temperature.
地下水流到地表的地方，就成为了绿洲。
Where underground water comes to the surface, there are oases.
本书的目的是描述地下水流理论的要点。
It is the purpose of this book to describe the elements of subsurface-flow theory.
地下水系所研究的范围通常是一个相对完整的地下水流域。
Studied area of ground water system is usually a ralaction integrated valley of ground water.
地下水系所研究的范围通常是一个相对完整的地下水流域。
Studied area of ground water system is usually a ralaction integrated valley of ground water.
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