The bedload of Weihe River is the key problem in management of Weihe River water resources.
泥沙问题是渭河治理的症结，泥沙处理得失是渭河治理成败的关键。
In the bedload movement process, coarse sand tended to stay on the sand bar, find sand was brought away.
底沙运动过程中粗粒沙滞留在沙洲，细粒沙被搬走。
The research of stable channel shape on the condition of bedload discharge equals zero by use the extreme hypotheses.
利用极值假说研究输沙率为零时的稳定断面形状。
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