证实了床沙质、冲泻质与全沙具有统一的挟沙能力。
It has been proved, the bed material load, wash load and total load follow the same rule of carrying capacity.
在分析基础上，提出了漫水丁坝坝头床沙起冲流速的计算办法。
Then, the calculating method of initial scour velocity of bed sand around submerged spur dikes is suggested.
经分析得到起沙风速与沙床沙粒粒径和沙床粘结力间的数量关系。
The quantitative relation among the threshold wind velocity of sand movement, sand diameter and the agglutinate stress of sand bed is obtained with the mentioned dimensionless variables.
床沙越粗、组成越不均匀，粗化作用越大，这一临界粒径也越大。
The thicker the sand bed, the non-uniform sand composition, then the larger armouring effect would be and the larger this critical size is correspondingly.
河道比降、床沙组成是河道边界条件中影响河型形成的最主要因素。
Stream gradient and bed sand constituent are the main factors which is influencing on river pattern formation in the boundary condition.
主要在床沙与推移质交换的同时，考虑了床沙与推移质向悬移质的净交换。
Especially, while exchanging between bedload and bed material, the net transport of bed load towards waters was considered.
根据实测地形和水文泥沙资料，分析了葛洲坝枢纽运用后宜昌河段的河床冲淤变化、推移质和床沙的粗化以及枯水位的变化。
The river channel change, the bed load and bed material armoring, and the water level lowering after the operation of the Gezhouba project are analyzed based on the topographic and hydrologic data.
本文在输沙实验的基础上，从研究水流结构着手，分析了水流和泥沙之间的相互作用关系，讨论了动床沙粒阻力和底沙输移规律。
Based on sediment transport experiments, the interaction between flow and sediment movement is analysed and the problems of grain resistance and bed load transport on plane movable bed are discussed.
基于泥沙运动的起动和止动条件分析了悬移质泥沙和床沙交换的内在机理，并根据这一机理推求了冲淤平衡状态下悬移质挟沙力级配的计算公式。
In terms of this mechanism, the calculation formula for the suspended load sediment-carrying capacity graduation under the balanced state of silting and scoring is deduced.
建立了能反映非均匀床沙暴露作用及隐蔽作用的计算非均匀沙起动流速的简化模式，通过专门安排的非均匀沙起动流速试验及分析川江野外观测资料，确定了计算公式的系数。
A simple model used to compute the velocity of threshold motion for each grain size of the non-uniform sediments in consideration of both their expose and shelter actions is established;
冉阿让手里握着铁条，慢慢地向着芳汀的床走去，走到以后，他转过身，用一种旁人几乎听不见的声音向沙威说。
Jean Valjean, armed with his bar of iron, walked slowly up to Fantine's couch. When he arrived there he turned and said to Javert, in a voice that was barely audible.
沙垫床是泌乳母牛和青年母牛等常用的垫料之一。
A popular housing design for cows and heifers alike includes sand bedding.
他们发现了一个沙岩石床。
集沙效率随着距床面高度的增加而急剧增高。
The efficiencies of traps increase with height above the bed.
一些工程师建议这段时间应该被延长，以便沙床能够在泥浆块被移除后休息一个月的时间。
Some engineers suggest that this period be extended to allow a sand bed to rest for a month after the sludge cake has been removed.
压根找不到暗示附近有近岸沙床的哪怕一小片海藻，或者一星点生机颜色。
Not a fleck of seaweed or splash of color to give a hint of a sanding shelf.
对于研究泥沙问题的动床模型试验，模型沙的选择是模型设计的关键。
The selection of model sand is the key problem in the design of a mobile bed model test.
根据给定的水流及泥沙条件，预报床面可能出现的沙波形态，是一个重要的研究课题。
According to given flow and sediment conditions, predicting possible bed form in river bed is an important problem.
本文还导得动平床情况下的流速分布公式、阻力公式和输沙率公式，使动床的水流运动和输沙过程得以联解。
The formulas of velocity distribution, flow resistance and bed load transport rate are obtained, in which the flow and sediment movement are considered simultaneously.
迄今，近岸水域建构筑物的局部冲刷深度的估算均假定局部冲刷前后为平床，没有考虑常见、广布的近岸沙波底形。
Up till now, local scour depth estimation in the nearshore architectures are assumed that whenever the seabed is flat, which not considered the common bed form: sand waves.
从而从这些有缺陷的能量平衡方程所得到的一些泥沙运动理论，如输沙强度、动床阻力等，就难免在理论上存在一定的不足。
Therefore, some sediment transport theories derived from these energy balance equations of sediment-laden flow, such as sediment transport intensity, resistance in movable bed, etc.
在高能态区，从动平整床面到沙浪的出现，总水流功率又逐渐背离有效水流功率。
At upper flow regime, the total stream power gradually deviate the effective stream power from movable plane bed to existence of sand wave.
文中首先给出了由我们建立的床面泥沙交换理论导出的非均匀沙扩散方程的边界条件。
The boundary condition at bed surface of diffusion equation of nonuniform sediment is derived based on the concept of exchange intensity of stochastic theory by the author.
试验发现推移质泥沙随水流绕过圆柱体时，将在圆柱周围的床面上形成一个无沙区。
When the bed load round the cylinder with water flow, a region of non sediment's moving will be formed in the bed layer near the cylinder.
实测资料表明，推移质输沙率与床面层内有效水流功率有良好的相关性，且高于推移质输沙率与水流功率的相关性。
The measured data show that the bedload sediment transport rate is related more closely to the effective stream power within the bed-surface layer than to the river stream power.
为了进一步论证工程方案的泥沙输移的效果，还进行了整治前后定床输沙对比试验。
In order to prove the effects of the sediment transport of the project scheme, comparative experiments of fixed bed sediment transport before and after regulation were made.
上游河段的床面为沙垄所覆盖，而下游河段则为平整床面。
In the upper reach the bed was dune covered and in the lower reach it was flat.
通过动床波浪输沙模型试验，研究了日照帆船港3种设计方案的泥沙运移情况。
The movable-bed wave sediment transport model tests were used to study the sediment transport conditions for 3 design schemes of the Rizhao sailing harbor.
通过与试验资料及经验公式的比较对本文建立的关系式进行了检验，结果表明本文所得计算公式与实际符合较好，可用于悬沙床面平衡浓度的计算。
The comparisons with flume experimental data and three empirical formulas show that the proposed formula has fairly good accuracy in predicting the equilibrium bed concentration.
通过与试验资料及经验公式的比较对本文建立的关系式进行了检验，结果表明本文所得计算公式与实际符合较好，可用于悬沙床面平衡浓度的计算。
The comparisons with flume experimental data and three empirical formulas show that the proposed formula has fairly good accuracy in predicting the equilibrium bed concentration.
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