内一个经过疏浚的码头停靠了一个月。
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.
本文结合近些年来我国北方河流出现的河床枯萎现象，分析了枯萎疏浚的基本原理及几个关键技术问题，对于目前在黄河等枯萎河道上采用疏浚防洪有一定的参考价值。
Based on the new phenomena of the shrinkage of river channels in North China, analyses of the basic principles and some key problems for dredging under shrinking conditions are presented.
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