發送短信 : The effects of micro-fracture on the structural responses of concrete

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