hydrological regime change 水文情势改变 ; 水情变化 effect of human activity on hydrological regime 人类活动的水文效应 .
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The hydrological regime change law is proposed by the analysis of discharge-stage relations of main hydrologic stations in Dongting Lake area in this paper.
通过对湖区主要水文控制站的水位流量关系的分析，得到了近四十年来水情变化的一些规律， 供有关部门参考。
Understanding the characteristics of the project, such as backwater curve, change of hydraulic and hydrological regime (such as change of discharge and silt distribution).
粒径和沉速的频率分布特性对于描述泥沙都是必需的。
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