Circum-Bohai-Sea region is one of three economic cycles in east of China, meantime it is one of the places where water resources is most shortage and geological environment is most vulnerable.
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- 环渤海地区是我国东部三大区域经济圈之一,同时又是我国水资源短缺最严重、地质环境最脆弱的地区之一。