Based on the saltation, creeping and stability models, a two-dimensional numerical model is established to study the development process of aeolian ripples.
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。
If the development efficiency of the three-dimensional model can be improved, the progress of the development of virtual experiment will be accelerated.
如果能提高三维模型的开发效率，将会加快整个虚拟实验开发的进度。
Based on the current software quality mathematical model, a three-dimensional model framework of software project development was analyzed.
在分析现有软件质量数学模型的基础上，提出了软件项目开发三维模型框架，建立了软件质量最优化数学模型。
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