This paper recommends a method of lowering the ground water table by setting up the horizontal drains in hill slopes.

介绍在土坡中设置水平渗水管来降低地下水位的一种方法。

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Combined with survey experience, the author probed into the methods of setting up ground control net with GPS and EDM lead for small hydropower projects based on the introduction of practice examples.

结合测量经验，探讨了用GPS与EDM导线建立小水电工程地面控制网的方法，并以实例加以介绍。

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This has turned out to be a good setting for landscape shots which capture good proportions of ground and sky.

这已被证明是一个很好的设置风景拍摄，捕获地面和天空良好的比例。

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That is because the tradition of setting off firecrackers during this time of the year causes a large amount of noise, air and ground pollution.

BBC: Taipei residents urged to use CDs not firecrackers

Through this web of institutions and arrangements, nations are now setting the international ground rules for the 21st century, laying the foundation for security and prosperity for those who live within them, while isolating those who challenge them from the outside.

CNN: Text Of Clinton's Remarks To The United Nations

Mr Romney ceded little ground, though, setting the stage for a series of bruising exchanges that crackled with tension.

BBC: Obama and Romney hit campaign trail after biting debate