影响河口河道好坏的因素，除淤积延伸长度外，还应包括河槽形态、水沙过程、河口疏浚等。
Besides the extension length of sedimentation, the factors that effected the river course are channel pattern, process of water and sediment and dredging.
根据艾山以下河道的冲淤特性确定了挖泥疏浚的设计流量；依据实测资料建立了河槽糙率与流速的关系，并以此确定河床的糙率。
The design flow for dredging activities is determined on the basis of the scouring and silting characteristics of the channel downstream of Aishan.
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