In quantitative study of the interaction between the lake water and groundwater, the hydraulic conductivity of lake bed sediment is a very important parameter.
在湖水与地下水相互作用的定量研究中，湖底沉积物的渗透系数是极其重要的参数之一。
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.
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。
The methods of simulating the physical patterns of sediment exchange and bed coarsening and establishing long series river-bed sediment accumulation mathematical model were also given.
介绍了泥沙交换和河床粗化计算模拟的物理图案和长系列河床演变数学模型的研究方法。
The occurrence of the lower limit of bed material size is attributed to the grain size composition of incoming sediment and the fining mechanism.
研究认为河床质调整极限是由来沙组成及河床质细化机制决定的。
Despite this attention; only modest progress has been made in the basic understanding of the bed phenomena and their relation to sediment movement.
尽管受到注意，但床面现象及其对泥沙运动的关系的基本理解却仅有不太显著的进步。
But the theory about the flow regime of the wave boundary layer, the wave friction factor, the bed shear stress and the initiation of sediment motion has not developed very well.
而且波浪是海岸地区一个非常重要的海洋水动力因素，波浪作用下底部边界层的流态、底摩阻系数、床面剪应力和泥沙起动的理论还不成熟。
To set the model sands for marine mobile bed physical model experiment is the key in the experiment to simulate the sediment movement.
本文以一港口物理模型试验为实例说明模型沙选择和布置模型沙对模拟泥沙运动的重要性。
Sanmenxia storehouse district has brought a series of questions to the Shaanxi Guanzhong area flood prevention security Because of vast sediment deposition, large scale river bed lifting.
三门峡库区由于泥沙大量淤积，河床大幅度抬升，对陕西关中地区的防洪保安带来了一系列问题。
The water surface level, velocity field and sediment concentration field of gravel sand bed and sand bed reach on Jianjiang river were refined simulated.
细致地模拟了荆江卵石夹沙河床及沙质河床浅滩河段的水面线、流速场、含沙量浓度场及河床变形。
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.
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。
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.
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。
According to given flow and sediment conditions, predicting possible bed form in river bed is an important problem.
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。
The formulas of velocity distribution, flow resistance and bed load transport rate are obtained, in which the flow and sediment movement are considered simultaneously.
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 main channel bed will scour if sediment amount from tributary debris is less than that the main stream can carry and the river evolution exhibits the characteristic of mountainous rivers.
当支沟泥石流输入主河的泥沙量小于主河的输沙量时，主河河床将下切，并逐渐恢复山区性河流的特征。
The new fluidized bed catalysts KF1302T and KF1311 developed recently provide lower sediment formation and higher HDS activity comparing with the previous catalysts.
与以前的沸腾床催化剂相比，该公司最近开发的沸腾床催化剂KF 1302t和KF 1311能够降低沉积物的生成，提供更高的加氢脱硫性能。
And every lithological member is composed of the lower gypsiferous salt bed and the upper terrigenous clastic rock, which belongs to the lacustrine sediment.
该组可划分为三个岩性段，每个岩性段均由下部膏盐层、上部陆源碎屑岩组成，均属湖泊沉积。
It has deduced the mathematical function of the sediment void ratio on the basis of stress and structure analysis, and then the mass and volume conversion of deep bed filtration sediment is given.
通过受力情况和结构特性的分析，推导出了沉积物空隙率的函数表达式，在此基础上，给出沉积物质量与体积的换算关系。
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.
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。
The nearby beaches may supply sediment for the embayment during storm surges, by causing bed-load and suspended-load transport of the beach material towards deeper waters.
胶州湾沙滩供沙的主要机制是通过风暴潮期间强烈的动力作用，使沙滩沉积物以悬移质、底移质形式向深水区扩散或搬运。
The flow with sediment trapped by the slit of the vortex tube can form vortex inside the tube and exclude efficiently the coarse sediment near the bed layer in front of the tube.
进入涡管槽口的挟沙水流会形成强有力的螺旋流沿涡管流动，能有效地排除底部推移质泥沙。
Shields diagram is an experimental curve which describes the bed shear stress for the grains of sediment in critical condition.
希尔兹曲线是表达泥沙起动切应力的实验曲线。
The basic reason of these abnormal phenomenas is caused by hyper-sediment concentration, severe deposition of the channel and obviously increased the river bed.
发生这些异常现象的根本原因是，本次洪水的含沙量大以及近几年河道淤积严重、河床明显抬高。
With decreasing of peat granule size, the content of TN and TP was increasing obviously in peat sediment of river bed-flood land and valley depression land.
河床-河漫滩型和谷底洼地型泥炭沉积物中总氮和总磷含量随着泥炭粒级的减小而明显增加。
Its main work includes the Yellow river sediment cross-section tests, river bed surface quality sampling and particle size distribution analysis and so on.
其主要工作内容包括黄河河道断面淤积测验，河道表层河床质取样及颗粒级配分析等工作。
The released flow from reservoirs carries less sediment load of bed material than pre? dam periods.
建坝后水库下泄水流挟带的床沙质含沙量减少，坝下游河床出现冲刷。
The coherent structure of the turbulence and the interaction of the sediment and the bed are now much studied all over the world.
湍流拟序结构与泥沙及床面相互作用的机理，是目前国内外泥沙学术界研究的热点领域。
Studying the sediment vertical distribution affected by wave and current is the important base to explore the transport behave of sediment on the silt sea bed under the same conditions.
研究波浪和潮流作用下水体含沙量的垂线分布，是解析粉沙质海岸滩面泥沙在波浪和潮流作用下泥沙运移形态的重要基础。
The sediment transport resulted from self adjustment of the channel bed due to backwater effects differs from that occurring in a uniform flow.
三角洲河道动床之自我调整作用，因水库水位之回水影响，其输沙特性有异于明渠均匀流。
The sediment transport resulted from self adjustment of the channel bed due to backwater effects differs from that occurring in a uniform flow.
三角洲河道动床之自我调整作用，因水库水位之回水影响，其输沙特性有异于明渠均匀流。
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