發送短信

數:

提供者:

CAPTCHA:

  ______    ______   _    _      ___      ____    
 /_   _//  /_   _// | \  / ||   / _ \\   |  _ \\  
 `-| |,-    -| ||-  |  \/  ||  / //\ \\  | |_| || 
   | ||     _| ||_  | .  . || |  ___  || | .  //  
   |_||    /_____// |_|\/|_|| |_||  |_|| |_|\_\\  
   `-`'    `-----`  `-`  `-`  `-`   `-`  `-` --`

Please enter what you see:

發送短信 : Failure mode of arch structure subjected to internal blast (ST40AB) Focus on experimental study on tracking the debris flight path emanated from explosion