發送短信 : Effect of apron length on jet-flipping scour downstream of a submerged weir

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|  __ \\   |  ___||  /_   _//  /_   _// | || | || 
| |  \ ||  | ||__      | ||     -| ||-  | || | || 
| |__/ ||  | ||__     _| ||     _| ||_  | \\_/ || 
|_____//   |_____||  /__//     /_____//  \____//  
 -----`    `-----`   `--`      `-----`    `---`