發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Fracture mechanics analysis of defence hole system for a uniaxially loaded plate using boundary element method