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1)  bed roughness
床面糙率
1.
The relationship between riverbed roughness and its fractal dimension is obtained according to the experimental data and compared with the relationship between roughness and representative diameter.
本文在分析非均匀沙床面颗粒随机分布特性的基础上,对床面颗粒暴露度函数关系进行了分析,通过简化颗粒的排列方式,利用分形理论研究了初始及粗化床面糙度的分形特征,结合实验资料讨论了床面糙率n与糙度分维数D的关系,并与床面糙率n和代表粒径(d50、d90)的关系进行了比较,初步认为对于初始床面分维数与床面糙率具有更好的相关关系,而粗化床面两者代表性基本一致,为更好地研究床面糙率、泥沙起动及其输沙过程提出了一种新的研究方法。
2)  bed roughness
沟床糙率
1.
A calculating method for bed roughness based on debris flow velocity in curve;
基于泥石流弯道流速的沟床糙率计算
3)  bed roughness
河床糙率
1.
In this paper, the influences of downstream depth, bed roughness and accumulation of dumped stones on the flow in vertical closure are studied.
本文从龙口下游水力条件出发,探讨下游水深、河床糙率以及抛料堆积体对立堵规律的影响。
4)  rough bed
粗糙床面
1.
Hydraulic characteristics of open channel flow over a rough bed;
粗糙床面明渠水力特性研究
5)  field roughness coefficient
田面糙率
1.
Field roughness coefficient for different soil surface conditions were studied The main influence factor of field roughness coefficient in bare land and plowed land was analyzed.
田面糙率是影响田面水流运动的重要参数之一。
6)  surface roughness
表面粗糙率
补充资料:糙率
      见谢才公式。
  

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