發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Ion beam modification of chitosan and cellulose membranes for simulation of ion bombardment of plant cell envelope