發送短信 : A numerical study of the segregation phenomenon of lognormal particle size distributions in the rotating drum

 _____      ______   __   _     _____    __   __  
|  __ \\   /_   _// | || | ||  |  ___||  \ \\/ // 
| |  \ ||   -| ||-  | '--' ||  | ||__     \   //  
| |__/ ||   _| ||_  | .--. ||  | ||__     / . \\  
|_____//   /_____// |_|| |_||  |_____||  /_//\_\\ 
 -----`    `-----`  `-`  `-`   `-----`   `-`  --`