黄土的风成过程目前仍在进行。
采用数值模拟的方法研究了沙粒冲击角对风成沙纹形成过程及其形态特征的影响。
We studied the effect of particle impacting-angle on development of aeolian ripples using numerical simulation method.
通过简单的跃移模型、蠕移模型和稳定模型对风成沙纹的形成过程进行了二维数值模拟研究。
Based on the saltation, creeping and stability models, a two-dimensional numerical model is established to study the development process of aeolian ripples.
可见，区内风沙活动及风成景观的塑造过程，主要是在暖干期进行的。
So, it can be concluded that sand drift activity and aeolian landform forming are mainly taking place in warm dry period.
风 成床面作为一种地形，对风沙地貌表面过程产生了重要影响，这是 风沙地貌尚须努力开拓的领域之一。
Therefore, aeolian bedforms, as one kind of landforms, play san important role in aeolian surface processes, it is also a field for further study.
采用数值模拟的方法研究了沙粒冲击角对风成沙纹形成过程及其形态特征的影响。
Shape characteristics of the natural aeolian sand ripples and their relations with the physical characteristics of surface sand. ;
采用数值模拟的方法研究了沙粒冲击角对风成沙纹形成过程及其形态特征的影响。
Shape characteristics of the natural aeolian sand ripples and their relations with the physical characteristics of surface sand. ;
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