diffusion radiation 漫射辐射 ; 扩散放射 ; 扩散辐射
radiation induced diffusion effect 辐射感生扩散效应
radiation enhanced diffusion 辐射增强扩散
However, accurate analytic diffusion wave solutions are difficult to obtain due to the strong nonlinearity of the radiation diffusion equation.
但是由于辐射热传导方程具有很强的非线性，其精确的解析解很难求出。
To prediction of city spatial expansion, this part brings forward predicting method of point sources radiation diffusion based on the thought of regional diffusion and takes Jinan as an example.
对城市空间的扩展，采用区域扩散的思想，提出一种城市空间扩展的放射线预测方法，并以济南为例进行了研究。
And comparing with radiation heating, atom diffusion velocity at interface quickened.
与辐射加热相比，接触面处原子扩散速率加快。
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