BOSS HEC-RAS is based on the U.S. Army Corps of Engineers?HEC-RAS water surface profile model used for modeling both steady and unsteady, one-dimensional, gradually varied flow in both natural and man-made river channels.（HEC-RAS 公司開發(fā)的功能強(qiáng)大的軟件，可以用于均勻、非均勻流，一維，緩流的人工渠道和天然河道）
RAR
