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1·Regulation of bend convex bank channel at river estuary was of great technical difficulties under the prerequisite of not changing the river regime.

河口区弯道凸岸段水深治理 ，在不改变大河势前提下 ，其技术难度较大。

2·The results reveal that after the impounding, Tunaozi Shoal transformed basically from convex-bank entrenched meander to shallow broad river, and will further develop to a concave-bank deep channel.

分析表明，蓄水后土脑子河段已基本完成由凸岸深切河曲向宽浅河曲变化的过程，将会进一步转化为凹岸深槽的河曲。