The water was always laden with pebbles, gravel, and sand, known as glacial outwash, that was deposited as the flow slowed down.
水里总是遍布鹅卵石、砾石和沙子——它们被称为冰水沉积，是在水流减缓时沉积下来的。
Sediment as you know, is material like sand, gravel, fossil fragments that is transported by natural processes like wind, water flow or the movement of glaciers.
如你所知，沉积物是通过风、水流或冰川运动等自然过程输送的物质，如沙子、砾石、化石碎片等。
To a certain extent, the water began to penetrate the pyramids area around the gravel and continue eastward flow.
到了一定程度后，水流开始从金字塔周围的沙砾区渗透，继续向东流动。
Combining revelant theory, field investigation, the statistical analysis, the laboratory experiment, analysis initial mechanism of debris flow along gravel slope.
结合相关理论、野外调查、统计分析、室内试验，综合分析砾石坡面土石流发生之机制。
A new device was designed to study root biomass and distribution in the subsurface flow gravel-bed constructed wetland.
设计了一种新方法研究潜流人工湿地植物根系的分布和生物量。
The flow rate, perforation radius and shot density are the key parameters influencing the pressure drop across gravel pack.
分析结果还表明，油井产量以及射孔孔径和孔密度是影响砾石层压降的重要因素。
Incipient motion of solid grain in solid-liquid two \ | phase flow is often concerned in many petroleum technologies, such as horizontal drilling, gravel-packing and sand washing.
水平井钻井、砾石充填及冲砂等作业都涉及到固液两相流动的固体颗粒起动问题。
During the process of gravel-packing in horizontal Wells, there are the filtration flow of the carrier fluid to the formation and the exchange flow through the screen slots.
由于携砂液向地层的滤失以及通过筛管缝隙的流体质量交换，水平井砾石充填过程中冲筛、井筒环空两个流动系统均为复杂的变质量流。
Injecting the mixing liquid of mud and foam achieves good effects for plastic flow property conditioning of gravel with sand.
注入泥浆和泡沫的混合液对砂卵石地层进行塑流化改善效果良好。
The process includes the waste purification from oil emulsion in Tilted-Plate Separator and the suspension separation in the downward-flow sand-gravel filter.
处理方法包括使用倾斜盘式分离器分离油乳化剂，使用下流式砂砾过滤器分离悬浮颗粒物。
With the coupling equations of the two flow systems, the time-dependent numerical model for highly deviated well gravel-packing is developed.
模型求解后研制了开发了充填过程模拟器软件，用于可视化模拟大斜度井砾石充填过程。
With the coupling equations of the two flow systems, the time-dependent numerical model for highly deviated well gravel-packing is developed.
模型求解后研制了开发了充填过程模拟器软件，用于可视化模拟大斜度井砾石充填过程。
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