發送短信 : Buckling of pre-twisted threads embedded in a soft matrix

            ______              _____     ______  
  ____     /_   _//   ____     |  ___||  /_   _// 
 |    \\    -| ||-   |    \\   | ||__    `-| |,-  
 | [] ||    _| ||_   | [] ||   | ||__      | ||   
 |  __//   /_____//  |  __//   |_____||    |_||   
 |_|`-`    `-----`   |_|`-`    `-----`     `-`'   
 `-`                 `-`