發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Optimisation of helium-assisted drone : control and flight analysis