提高河槽边坡的稳定性，防止汹涌的河水冲刷河岸；
1 to improve the stability of the slope of the channel, to prevent the river surging river erosion;
河岸抗冲稳定性较强，并经常出现高含沙量大洪水，是形成渭河下游窄深河槽的关键。
The strong scour resistance and stability of the Banks and coming big floods always with high sediment concentration are the key fators for forming a narrow and deep channel in the lower wei River.
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