卵石推移质 meaning in Chinese
bed load of pebbles
Examples
- The achievement of this paper has an important reference value in analyzing the mechanics of bedload movement in the mount river without field data
本文的研究成果对分析没有实测资料的山区河流卵石推移质的运动规律具有重要的参考价值。 - Based on 9 years ' field data of bed - load transport and the corresponding hydraulic parameters at the erwangmiao hydrology station on dujiangyan river , 6 formulae for the prediction of the sediment transport are analyzed
摘要以都江堰二王庙水文站9年实测的卵石推移质输沙率资料和对应的水力参数为基础，选用6个有代表性的公式进行了分析计算和对比。 - Abstract : variations of flow pattern , flow velocity in deep poo l and side bar , mainstream thread , and water surface , caused by excavation project , are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system . the change of bed - load transport rate , and redeposition r ate are predicted . the influences of the excavation project on navigation are ana lyzed . grid - type and flat - type excavation alternatives are proposed and discuss ed
文摘:采用正交曲线坐标系下的河道平面二维数学模型，研究了嘉陵江何家碛边滩采砂后河道流势、流态、滩槽流速、主流位置、水面高程及比降的变化规律，预测了采砂方案完成后卵石推移质输沙率变化及其对航道的影响，并对格形开挖和平整开挖方案进行了比较分析