行走江河看中国|为什么黄河流量越大水位反而越低?|成年美女黄网站色大免费视频

  为什么黄河流量大时水位反而越低?开封黑岗口险工防汛技术人员耿延宁介绍,这是因为调水调沙改善了水沙不协调、河床淤积问题。通过小浪底等水库联合调水调沙,黄河下游主河槽最小过流能力达5000m³/s,可以保证中小洪水不漫滩。(黄晓溪 李雨昕 实习生 丁劲利)

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