... 钻孔水文地质综合成果表（comprehensive graphs of b 地下水资源分布图（map of groundwater resources） 矿床水文地质图（mine hydrogeological map） ...
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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
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