發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Effect of surface defect on specimen and insertion distance of striker bar in tensile split Hopkinson pressure bar test