發送短信 : Limit loads of buried pipelines with asymmetric initial imperfections

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