Several experiments were finished and then find the explanation for the diffusion of the Ag clusters towards the oil edge.

并对银原子及其团簇向样品边缘扩散的物理机制进行了解释。

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Anisotropic diffusion has good effect on reducing noise and preserving edge, in fact its an iterative process. An important question is to decide when the process should be stopped.

各向异性扩散在抑制噪声与保留边缘方面具有良好的性能，它实际上是一个微分迭代的过程，一个重要问题是这种迭代过程何时停止。

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The fractal structure of LPG diffusion fire edge was theoretically studied on the basis of image processing and fractal theory.

基于图像处理方法和分型理论研究了液化气扩散火焰边缘分形结构特征。

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