Strength, volumetric strain and permeability coefficient, and even moisture-distribution above ground water surface can be determined by the soil-water characteristic curve.

根据土水特征曲线可以确定非饱和土的强度、体应变和渗透系数，甚至可以确定地下水面以上水份分布。

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Around the pumping Wells and within the limit of a funnel-shaped ground water surface, not only vertical movement, but also horizontal compression and dilatation can be observed.

抽水所造成的地下水漏斗区范围内，不仅能产生垂直形变，而且在其影响的不同部位，还形在压缩和拉伸的水平形变。

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If the burst does not penetrate the surface, the only other hazard will be from ground or water shock.

如果爆炸没有穿透表面，那么地面或水面冲击是唯一能够带来伤害的。

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Mirra deep cleans any type of in-ground pool surface and water without using the pool's filtration system, hoses or booster pumps, which results in energy cost savings from running these pool systems less frequently.

ENGADGET: iRobot flaunts the Mirra 530 pool cleaning robot, sends the Looj 330 abroad

The islands natural surface and ground-water resources can only cover about 10% of the demand at present.

UNESCO: MEDIA SERVICES

In a number of areas the ground remains frozen beneath the surface, which means excess water will run into rivers instead of being absorbed by the soil.

BBC: Flood warnings issued after heavy rain and snow thaws