sediment bed

A slower exchange rate of bed material then leads to a longer distance of non equilibrium sediment transport.

床沙交换速率愈慢，则冲刷距离愈长。

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.

For the first time, we make use of thermoluminescence technique to demarcate variegation boulder bed which is the district corresponding period sediment guiding bed, the top appear multilayer ash tuff which have similar thermoluminescence parameter;

首次利用热释光技术标定了杂色砾岩层为区域同期沉积的标志层，其上部出现的多层凝灰岩具有相似的热释光参数；

Bed style mainly is sediment, sediment-reconstruct. deltaic deposit.

矿床类型以沉积、沉积&改造型为主。

The influence of sediment diameter on bed-load transport rate

泥沙粒径对推移质输沙率的影响

By the analysis of theory, the research elaborates that the threshold condition for incipient motion of non-uniform sediment with a specific size, is directly related to flow condition, sediment size distribution, location of bed material, and income sediment from upstream.

本项研究从理论上论述了非均匀沙某级粒径的临界可动条件不仅与水流条件有关，也与泥沙级配组成有关，还与床沙位置、上游来沙条件有密切的关系。

This paper summarizes the sediment bed frame for when the dike before the relative movement of the mechanism of sediment, erosion and deposition process and the final shape.

本文总结了底床泥沙为相对粗纱时堤前泥沙的运动的机理、过程和最终的冲淤形态。

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。

On the basis of the stressing features of sediment particles on the river bed surface, the probability distribution of instantaneous initiation moment of sediment particles' motion was deduced to be a normal distribution.

根据位于床面上泥沙颗粒的受力特点，取各力力臂为常量，推导得到泥沙颗粒瞬时起动力矩的概率分布为正态分布。

Field Comparisons of Bed Load Samplers from USA and China Design of the Valve for Sediment Sampler

中国和美国的推移质泥沙采样器野外比测试验

A study on channel scour rate of sediment laden flow and river bed inertia

挟沙水流的冲刷率及河床惯性的研究