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。
The paper analyzes the frame structure theory, the communication theory, the behavior alternation theory in products, and theory of the agricultural innovation and technology diffusion.
农业技术扩散的理论主要有框架理论、沟通理论、农户行为改变理论和技术创新扩散理论。
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