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。
Insulation system: adopting germany-made insulation material, radiation reduction temperature, heating time brief loss of diffusion warming faster.
保温系统：采用德国进口保温材料辐射材料加工而成，减低温度扩散损耗，简短加热时间升温快。
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。
The IR radiation and diffusion characteristic of ground background a re analyzed in detail.
详细分析了地面杂散背景的辐射和散射特征。
Centred on thermal radiation, noise and diffusion, the basic design principle and method of gas blowdown sound pipe are described in derail.
围绕热辐射、噪声和扩散详述了天然气放空立管的基本设计原则和方法。
To quantitatively study the ADC values of normal white matter with advancing age on diffusion and establish reference values of ADC for further studies of radiation-induced injury.
定量地分析不同年龄段正常脑白质磁共振扩散加权成像ADC值，建立正常脑白质及灰质ADC值标准，为评价放射性脑损伤提供参考值。
In conclusion, the dyeing properties of wool were enhanced with the UV radiation due to the increased diffusion coefficient of wool fibers.
紫外线处理破坏了羊毛纤维鳞片表层二硫键形成的致密的网状结构，使羊毛的初始染色壁障被打破，染料容易从染浴向纤维内扩散。
In conclusion, the dyeing properties of wool were enhanced with the UV radiation due to the increased diffusion coefficient of wool fibers.
紫外线处理破坏了羊毛纤维鳞片表层二硫键形成的致密的网状结构，使羊毛的初始染色壁障被打破，染料容易从染浴向纤维内扩散。
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