1) gravel and sand bed
卵石夹沙河床
1.
According to the characteristics of the middle reaches of the Yangtze River,a wide-size distribution with a gravel and sand bed near the Gezhouba Project,a 2D mathematical model for nonuniform suspended load and bed load was used for numerical simulation,which takes into account the nonequilibrium transport of bed sediment and the gradation changes during the deposition and erosion process.
针对长江中游葛洲坝水利枢纽下游近坝段卵石夹沙河床级配分布宽等特点,应用非均匀悬沙、底沙二维数学模型,考虑底沙的不平衡输移及冲淤过程中床沙的级配调整问题,对计算中的关键环节如卵石夹沙河床水流的有效挟沙能力、非均匀沙起动概率及非均匀沙推移质输沙率的计算提出了处理方法,利用水文、泥沙及河床变形资料对该方法进行了葛洲坝水利枢纽运行后、1998年洪水前后及三峡工程运行后水面线、流速分布及冲淤过程的验证。
2) gravel and sand river
卵石夹沙河流
3) pebble bed
卵石河床
1.
Experimental study on pebble bed scouring by deflector dissipation of suspension current;
含沙水流挑流消能对卵石河床冲刷的试验研究
2.
Four hydrological stations of sandy and pebble bed section have been chosen to make depth , width and discharge comparing measurement experiments.
近几年来,新疆伊犁水文水资源勘测局先后引进6台EKL型水文缆道设备,并分别应用于不同特性的河流,选择沙质河床和卵石河床组成断面的四个水文站进行测深、测宽及流量比测试验,通过对EKL设备的测深、测宽功能及流量实测资料进行统计分析计算,分析了该设备在沙质河床和卵石河床河流上的应用。
4) gravel bed
沙卵石河段
1.
Investigation on water surface profile in the gravel bed reach of the middle Yangtze River:discussion on countermeasures;
长江中游沙卵石河段坡陡流急现象成因及对策研究(Ⅱ):治理对策探讨
2.
Investigation on water surface profile in the gravel bed reach of the middle Yangtze River:its current state and evolution trend;
长江中游沙卵石河段坡陡流急现象成因及对策研究(Ⅰ):发展趋势探析
5) the high gradient gravel bed
大比降卵石河床
1.
The experimental study on the velocity distribution over the high gradient gravel bed;
大比降卵石河床水流运动试验研究
6) river-borne material;burden of river drift;sediment yield
河流夹沙
补充资料：夹叙夹议
1.边叙述边议论。
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参考词条