underground irrigation

With water amount coming from Yellow River reduced, the water flow from Yellow River to Ningxia irrigation area has reduced 30%. Digging wells to combat drought results in the decrease of underground water level in the irrigation area and causes individual lakes dry out.

近年黄河来水减少，宁夏引黄灌区灌溉用水减少了30%，灌区实施抗旱打井工程，造成灌区地下水位下降，个别湖泊出现干涸；

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It is necessary to exploit shallow groundwater including brackish water and semi-saline water for irrigation to combat drought, then vacating the space of aquifer in underground;

春季开采浅层地下水包括微咸水和半咸水抗旱灌溉，腾出地下含水层空间；

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The content of soil heavy metals and shallow underground water quality were not greatly influenced by making use of the renovated water for irrigation.

使用再生水对土壤中重金属含量及示范区浅层地下水水质未造成明显影响。

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Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.

在许多国家，成百上千万灌溉用井正将地下水源源不断地抽出地表，其速度超过了雨水回灌的速度。

四级真题- 2016年 6月 2卷 信息匹配

Elsewhere rainfall ranges from modest to abundant, and rivers and underground water permit extensive irrigation.

其他地区的降雨量有的适中,有的充足, 河流和地下水源可用作大面积的灌溉.

英汉非文学 - 政府文件