發送短信

數:

提供者:

CAPTCHA:

  ____       ___     __   __   _    _     ______  
 |  _ \\    / _ \\   \ \\/ // | || | ||  /_   _// 
 | |_| ||  | / \ ||   \   //  | || | ||    | ||   
 | .  //   | \_/ ||   / . \\  | \\_/ ||   _| ||   
 |_|\_\\    \___//   /_//\_\\  \____//   /__//    
 `-` --`    `---`    `-`  --`   `---`    `--`

Please enter what you see:

發送短信 : FRAME PROPERTIES OF SHIFT-INVARIANT SYSTEMS AND GABOR SYSTEMS