Major water Supply: Local ground water.

主要水源：当地地下水。

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This article, with Xiji County of southern Ningxia as the example, discusses Tertiary strata's influence on the local ground water.

本文以宁南地区西吉县为例，探讨第三系地层对当地地下水的影响作用。

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In the months before, there had been a swarm of small earthquakes, along with changes in ground-water levels and the elevation of local terrain.

几个月之前，就发生了一连串小地震，伴随而来的是地下水水位和当地地形海拔的变化。

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Local police described how one piece smashed into the ground near Lake Chebarkul, throwing up a column of ice, water and steam and creating a 26-foot crater.

WSJ: Meteorite Hits Russia, Causing Panic