groundwater resources map
groundwater resources map
地下水资源图
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Since January 2012, UNESCO has been working in the drought-affected countries in the Horn of Africa to identify and to map groundwater resources for an aquifer that will provide at least 200, 000 cubic meters of renewable water every year.
UNESCO: NATURAL SCIENCES