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。
Wind sand flow is the main calamity to the railway.
风沙流是危害乌吉铁路的主要形式；
By the roadbed height proposed and the analysis of wind velocity flow field, the active sand dune zone should be kept between 1.
按风速流场分析所建议的路基高度为：流动沙丘区路基合理高度宜在1。
The law of sand incipience is the connection of microcosmic mechanism research on wind-blown-sand two phase flow and macrocosmic engineering application.
沙粒起动规律是联系风沙运动微观机理研究和宏观工程应用的桥梁。
In this paper, influence of wind-sand flow on soil wind erosion was discussed using portable wind tunnel to simulate natural wind.
通过在便携式风洞内模拟挟沙气流，研究了风沙流对土壤风蚀的影响。
Through field survey of wind sand flow movement in the 100 km wind area along the Lan-Xin Railway, a new concept, the density of wind sand flow, is put forward.
通过对兰新铁路百里风区戈壁风沙流进行现场观测研究，提出风沙流密度的新概念，解决风沙流研究中如何利用现场定时观测研究风沙流动态变化特点的重大技术难题。
Through field survey of wind sand flow movement in the 100 km wind area along the Lan-Xin Railway, a new concept, the density of wind sand flow, is put forward.
通过对兰新铁路百里风区戈壁风沙流进行现场观测研究，提出风沙流密度的新概念，解决风沙流研究中如何利用现场定时观测研究风沙流动态变化特点的重大技术难题。
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