本文根据天然实测大量资料并结合河工模型试验成果，在对河流特性理解的基础上，分析了各浅滩的形成原因，提出了整治原则和方法。
Based on the field data and the physical model results, the cause of formation for every shoal was analyzed in this paper, and the principles and the methods of regulation were put forward.
泥沙密度是河流泥沙的主要物理特性之一。
Sediment density is one of main physical characteristics of river sediment.
结果表明，河流溶解氧时间序列具有混沌特性，其外在表现为貌似随机的无规则特点；
The results show that dissolved oxygen time series of river basin has chaotic property.
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