1)wind-blown sand saltation风沙跃移运动
1.And aimed the fact that the influence of saltating particle\' spinning has not been taken into account when calculate the sand transport rate for the spinning is a stochastic and complex process, the influences of the particles\' spinning on wind-blown sand saltation are simulated in this dissertation.本学位论文主要对两个问题进行了研究:针对非均匀沙的大小颗粒之间的荫暴作用,提出了公切角表征颗粒床面位置关系的非均匀沙起动风速;针对目前由于沙粒在空中运动的复杂性和随机性以及实验条件的限制而忽略沙粒自旋对风沙跃移运动影响的现状,定量模拟了沙粒自旋对输沙率和能量的影响。
英文短句/例句
1.The Influence of the Particles mid-air Collision on Wind-blown Sand Saltation;沙粒空中碰撞对风沙跃移运动的影响
2.Numerical Research on Several Problems in Windblown Sand Saltation;风沙跃移运动中若干问题的数值研究
3.Discrete Dynamics Simulation on Developing Process of Aeolian Sand Saltation风沙跃移运动发展过程的离散动力学模拟
4.Numerical Simulation of Stochastic Collision between Grain and Bed in Aeolian Sand Saltation;风沙跃移运动的粒—床随机碰撞数值模拟研究
5.But it also has special phenomenon of pause, returning, leaping, displacement and hyperplasia, etc.但其运动中也有中止、流、跃、移、生等特殊现象。
6.ON THE SPLASH FUNCTION OF EQUILIBRIUM AEOLIAN SEDIMENT TRANSPORT风沙稳定输运中起跳沙粒运动状态分布函数
7.Bed Load Movement Theoretical Model and the Movement Process Calculation推移质泥沙运动理论模型及运动过程计算
8.An Experimental Study on the Performance of Sand Sampler and Sand DischargerPerformance of the Portable Wind Erosion-Wind Tunnel;可移动式风蚀风洞集沙仪及排沙器的性能试验研究
9.Study in Wind-Blown Sand Motion with Thermal Diffusion and Heat Convection;热扩散、热对流对风沙运动的影响研究
10.OBSERVATION AND RESEARCH OF COASTAL AEOLIAN IN NORTHEAST OF XIAMEN ISLAND厦门岛东北岸海岸风沙运动观测研究
11.Experimental Research on Wind Sand Flow and Nonlinear Dynamical Characteristics of Bed Load Motion风沙流的实验研究和蠕移动的非线性动力分析
12.The sand buried under the grass was exposed and began to loosen in the sun and shift in the wind.草地下层的沙土被翻到表层上来了，终于见到天日的沙土，开始松动、活跃、奔逐，招来了风。
13.Numerical Simulation and Experiment on the Sand Saltation Trajectory;沙粒跃移轨迹的数值模拟与实验研究
14.vt. swing through the air with a hissing sound嗖地挥动，沙沙地移动?
15.Grains moving in saltation receive most of their forward momentum directly from the pressure of the wind.在跳跃运动中的颗粒直接接受来自风压力的大部分向前的动量。
16.Sediment movement and the effect of wind to sediment transport near Xiaoqing River Estuary小清河口附近海域泥沙运动特征及风场对泥沙输运的影响
17.The youth movement was revived.青年运动复又活跃。
18.(of movement) having a light and springy step.（指运动）轻快、跳跃的脚步。
相关短句/例句
saltation[英][s?l'tei??n][美][s?l'te??n]跃移运动
1.A complete theoretical model with the wind feedback mechanism for steady state saltation is derived based on a simplified process of grainsurface impact.给出了全面描述风沙耦合作用下沙粒跃移运动的理论模型,利用数值方法对风沙耦合作用以及空气上升力、Magnus力、静电力等因素对沙粒跃移运动和风速廓线的影响进行了研究,从而揭示出拜格诺结(Bagnold'sKink)高度与其对应的风速及沙粒跃移高度的关系。
2.In this paper, the saltation of sand grains was studied in the case of the steady and fully developed blown sands.本文以平坦沙漠上定常、充分发展的风沙二相流为例分析了颗粒的跃移运动，在这种运动中颗粒吸收气流的机械能和水平动量向下输送，并在落地时传递给床面。
3.Saltation is the most significant in the three basic forms (Saltation,Suspension and Creep) of sand movement blown by wind.在沙粒运动的三种基本方式(跃移,悬移和蠕移)中,以跃移运动最为重要。
3)windblown sand movement风沙运动
1.Moreover, windblown sand movement is the main cause of soil erosion and dust storms.荒漠化作为一个全球性的重大环境问题,其主要表现形式是沙粒在风场作用下的运动,而风沙运动有是土壤风蚀和沙尘暴起动与发展的主要动因,因此对风沙运动特性的研究是当前风沙物理学和防沙治沙工程关注的重要课题之一。
4)wind activity风沙运动
1.This paper discussed the relations of sand deposits with wind activity strength around the high windbreaks.据此对应关系,在塔克拉玛干沙漠公路支线上选取合适路段,在不同地貌类型及不同地貌部位上,通过量测高立式沙障处的积沙量,得知风沙活动强度在不同区域的变化情况,从而进一步推断出塔克拉玛干沙漠腹地风沙运动的某些规律或特征:如最大输沙量可达17m3。
5)saltating particle跃移沙粒
1.A statistical analysis of the distribution function of the vertical lift-off speeds of saltating particles;跃移沙粒起跳垂直速度分布函数的统计分析
6)sand saltation沙粒跃移
延伸阅读
风沙风和被风卷起的沙土：漫天的～。
