平均粒径分布 meaning in Chinese

average particle size distribution

Through the arithmetic of image process , the pretreatment of image , threshold processing , boundary finding , pattern recognition , the size and the numbers of particles can be gotten . by the statistic of data , the charts of average size and concentration of particles in the near wall and core area are obtained . hi the thesis , the problems in the course of experiment are summarized , including the localization of apparatus and the ways of image processing which result in data error
文中对所获得的原始图像，通过图像预处理、二值化、边缘检测、模式识别等图像处理算法，识别出图像中颗粒的直径大小，以及颗粒的个数信息，经过数据统计，获得不同工况下近壁区和中心区的颗粒平均粒径分布和平均浓度分布曲线，总结了循环流化床的粒径与浓度的分布特性最后，文中总结了试验中所遇到的问题，包括仪器本身的局限和数据处理方法的影响，这些因素将对试验结果造成误差，文中还对试验中存在的问题和不足，提出了一些改进意见和处理方法上的尝试。