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有关1998年长江和松花江的特大洪水成因还要进行进一步的深入综合研究。 1998年长江中下游发生了特大洪水。据每天国家防总发布的“汛情通报”和水利信息中心提供的水文资料得知,长江中下游流域绝大部分的高洪水位已超出了历史最高水位。除武汉和大通最高水位分别与历史最高水位差0.30米和0.33米外,其他
The causes of the extraordinarily serious flood in the Yangtze River and the Songhua River in 1998 also require further and comprehensive studies. In 1998, a serious flood occurred in the middle and lower reaches of the Yangtze River. According to the “Flood Control Bulletin” and the hydrological data provided by the Water Resources Information Center released daily by the State General Anti-panitch, the vast majority of high floods in the middle and lower reaches of the Yangtze River have exceeded the maximum water level in history. In addition to the highest level of Wuhan and Chase, respectively, with the highest water level difference of 0.30 meters and 0.33 meters, the other