發送短信

數:

提供者:

CAPTCHA:

  ______   __   __   __   __    ______    _____   
 /_   _//  \ \\/ //  \ \\/ //  /_   _//  |__  //  
 `-| |,-    \ ` //    \   //    -| ||-     / //   
   | ||      | ||     / . \\    _| ||_    / //__  
   |_||      |_||    /_//\_\\  /_____//  /_____|| 
   `-`'      `-`'    `-`  --`  `-----`   `-----`

Please enter what you see:

發送短信 : Carbon nitride thin films deposited by nitrogen-ion-assisted KRF excimer ablation of graphite