ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

For the heterogeneity and random distribution in potato internal structure, the water transport process during drying was simulated by using fractal characteristics. The result showed that the model combined with shrinkage and fractal was more close to the experimental data than no shrinkage and continuum model, and the internal pressure distribution did not fall step by step in proportion as continuous model. The fractal model including shrinkage increased with pore connectivity, porosity, area fractal dimension and the ratio of the minimum and maximum pore diameters, whereas it decreased with tortuosity fractal dimension and pore tortuosity.