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河道演变
[水文] channel change
- 河床河岸地质结构对河流地质作用的制约主导着河道演变的趋势。
The restraint of geologic structure of river bed and bank on the rivers geologic action controls the river evolution trend. - 但防洪工程建设项目实施后，将给长江河道演变、江湖关系、水文情势等带来一系列的变化。
But the flood control projects will bring about a series of changes to the river channel evolution of the Yangtze, the river lake relation and hydrologic regime etc. - 在遥感调查和监测的基础上，结合第四纪地质资料，对黄河银川平原段的河道演变过程进行了系统研究，对主要的河流改道原因进行了分析。
Based on remote sensing monitoring and investigation combined with data of Quaternary geology, the authors studied and analyzed the change process of the Yellow River course in Yinchuan plain sector.
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