将EM 38水平放置在地表以上不同高度，仪器e M读数随高度的变化与不同深度土层的盐分含量分布有关。
Deposing EM38 horizontally at different heights above the ground, the variation of EM readings has a relation to the salt contents in different depths of soil layer.
伊斯法罕的铀转化设施，是生产六氟化铀(UF 6，一种铀化合物转化为气体，进入离心机进行浓缩)的装置，在地表以上易于攻击。
The Isfahan conversion plant, which produces uranium hexafluoride (UF6, the uranium compound that is passed as a gas into the centrifuges to be enriched), is above ground and vulnerable to attack.
在气候特别湿润的年月里，平常干涸的河床下游可能会有水流动，因为地下水在那里位抬升到了地表以上。
In particularly wet years, short stretches of an otherwise dry stream-bed may have flowing water because the water table rises to intersect the land surface.
为了与周边环境保持同质性，在周边环境不显得突兀，地表以上周边的墙全部是由石头建造。
To maintain a homogenous atmosphere with the surrounding tranquility, and not stand out in the landscape, the external walls above ground are stone heaps.
在库区实地的研究结果表明，在新开垦的坡耕地幼龄果园里，若果树间地表无其它作物覆盖时，有32.6％以上的降雨以地表径流的形式流失；
Results indicated that over 32.6% rainfall will loss by pathway, if crop doesn't cover with the earth's surface of orchard.
因此，要想从植被覆盖的角度来控制土壤有机碳的流失，则应该将地表植被覆盖度维持在66%及其以上。
It meant that losses of organic carbon of soil suddenly decent when the vegetation coverage amounted to 66% or so.
因此，要想从植被覆盖的角度来控制土壤有机碳的流失，则应该将地表植被覆盖度维持在66%及其以上。
It meant that losses of organic carbon of soil suddenly decent when the vegetation coverage amounted to 66% or so.
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