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文章以鄂尔多斯市达拉特旗昭君镇淖畔防洪排涝工程项目为例,阐述明渠河道天然水面的推算公式。
Taking the flood control and drainage project in Zhaojun Town, Dalate Banner, Erdos City, as an example, the article expounds the formula of natural water surface of open channel river.