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黄河防汛县全国防汛的重点之一,黄河防汛工作所以历来受到最大的重视,不只是因为黄河的流量变化较大较多较快,同时还因它下游
Flood control of the Yellow River Flood Control County, one of the focus of the flood control work of the Yellow River so has always been the greatest importance, not only because of the larger Yellow River flow changes more rapidly, but also because of its downstream