alluvial sediment
英
美
[网络] 冲积沉积物
双语例句
- Alluvial soil A type of soil formed on river floodplains and deltas, where new sediment is deposited on the land during floods.
在河流漫滩和三角洲地带由洪水冲刷泥沙沉积而形成的土壤类型。 - The size distribution of non-uniform sediment on alluvial stream bed surface greatly affects the flow friction, sediment transport and fluvial processes.
冲积河流非均匀沙表层床沙粒径组成是影响水流阻力、输沙及河床冲淤的重要因素。 - This paper has described meandering alluvial rivers with mean annual suspended sediment concentration of more than 100kg/ m3 on the Loess Plateau, China, and explained their formation cause by the effect of hyperconcentrated water flow.
本文描述了在我国黄土高原宽谷中发现的含沙量超过100kg/m~2的曲流河床，并运用高含沙水流的作用对其成因进行了探讨。 - In the construction of barrage diversion works on alluvial rivers with heavy sediment load, complete systematic experience and design criteria are still lacking.
在平原多沙河流上修建引水枢纽，缺乏较系统完整的经验和指导原则。 - Unsteady one-dimensional numerical model for alluvial rivers with heavy sediment load and its applications
多沙河流的非恒定一维水沙数学模型及其应用 - A new explanation for alluvial channel pattern formation can be reached considering the double thresholds in scour fill process of wide range water sediment two phase flows.
运用所揭示的水沙两相流冲淤过程的双临界现象，可以对冲积河流河型的形成进行新的解释。 - In front of the middle segment of the mountain, there is Dashuigou alluvial fan with coarse sediment, moderate slope and less fan area.
中段的大水沟等四个扇体组成物质较粗，坡度较大，而面积较小。 - In alluvial streams the channel bed is scoured if the sediment load is lower than the sediment carrying capacity of the flow, such as flood flow and clear water flow released from reservoirs.
在冲积河流里，水流条件变化如洪水、水库泄放清水、河道渠化等使挟沙力不饱和引起冲刷，称为河道冲刷。 - At the edge of mountain or river alluvial, accumulate or sediment many thick or huge thick sand gravels.
在山区和河流边缘、岸坡、阶地上冲积、堆积或沉积有大片厚层或巨厚层的砂卵石层。 - Alluvial channel resistance is one of the most important issues in sediment transport mechanics.
冲积河流阻力是泥沙运动力学中的一个重要问题。 - Holocene strata in this area can be divided into alluvial deposits, alluvial material and diluvial genetic types of sediment.
本区全新统地层的沉积物按成因类型可分为冲积物、冲洪积物及洪积物。 - Alluvial fan and fan delta developed in escarp region of the north of the sag, and river-delta farmed in ramp belt of the south. These sediment bodies are characterized by sandstone pinch out, which is the base of lithological hydrocarbon reservoir. 2.
中生界在洼陷北部陡坡带发育冲积扇、扇三角洲沉积体系，在南部缓坡带发育河流三角洲沉积体系，这些沉积体系在斜坡部位易形成砂体尖灭，是形成岩性油气藏的基础。