本文的计算方法还可以应用于任意二维扩散器的内部流动计算，用来指导改进扩散器的设计。
This model also can be used for the internal flow calculation of any two-dimensional diffuser and for improving its design.
建立的粉尘在巷道中的传递方程是一个二维平流扩散输运方程。
The transfer equation for dust given in this paper is a equation of two dimensional airflow diffusion transport.
本文采用二维水质数学模型，研究南洞庭湖污染物质迁移扩散与混合的运动规律。
Mixing and dispersion of pollutants in South Dongting Lake was studied with a two-dimensional mathematical model for water quality.
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