粒径和沉速的频率分布特性对于描述泥沙都是必需的。
Frequency distributions of properties, e. g. size and settling velocity are necessary to the description of sediments.
对于含沙浓度较低的河流，浓度对沉速的影响不显著。
For rivers with lower concentration of suspended sediment, effect of concentration on settling velocity is inapparent.
粒径和沉速的频率分布特性对于描述泥沙都是必需的。
Understanding the characteristics of the project, such as backwater curve, change of hydraulic and hydrological regime (such as change of discharge and silt distribution).
本文利用精确的试验资料对几个泥沙沉速公式进行了比较。
Based on precise experimental data, a comparison among several formulae of sediment particle settling velocities is made.
在静水中的泥沙沉速，是研究泥沙运动规律时的一个重要指标。
The settling velocity of sedimentary particles in still water is an important index in the study of the mechanics of sediment motion.
所以可以不通过沉速分析，直接依据浓度数据来估计沉淀效率。
By analysing the column settling test data, the average concentration of the settled suspension can be obtained and then the settling efficiency can be estimated easily.
负压大小对桶形基础沉深、沉速的影响，以及桶形基础在海上应用的可行性。
The feasibility of application of bucket foundation in offshore platform is also studied and presented in this paper.
在稳定含盐静水中的絮凝沉速取决于泥沙粒径和类型、含沙浓度、沉距和水温等因素。
Under steady salinity, flocculating settling velocity depends on factors such as diameter and type of sediment concentration of suspension, settling distance and temperature of water.
应用灰色系统理论建立建筑物沉降观测的预测模型，对建筑物的沉降量及相应沉速作出预测。
A predication model of grey system theory was proposed for observation of building settlement. With the model, the ground settlement and its variation speed could be predicated.
验证结果表明，用张瑞瑾沉速公式计算结果与实测结果相差很大，而絮凝沉速公式计算结果与实测结果相符合。
The results of verification show that the results computed by the flocculation settling velocity formula are more rigorous than those done by the Zhang Ruijin formula.
工程区沉积物的平面及柱状分布及其物理力学指标、沉速、淤积切力、冲刷切力、固结过程、流变参数等的实验测定。
The plane and vertical distributions of sediment and its dynamical quota, sedimentary shearing velocity, sedimentary shearing force, erosive shearing force, solidification, rheological property, etc.
工程区沉积物的平面及柱状分布及其物理力学指标、沉速、淤积切力、冲刷切力、固结过程、流变参数等的实验测定。
The plane and vertical distributions of sediment and its dynamical quota, sedimentary shearing velocity, sedimentary shearing force, erosive shearing force, solidification, rheological property, etc.
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