發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Origin of hysteresis in the transfer characteristic of carbon nanotube field effect transistor