發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Cationic surfactant mediated exfoliation of graphite into graphene flakes