發送短信

數:

提供者:

CAPTCHA:

 _    _     _____     ______    ______    ______  
| || | ||  |  ___||  /_   _//  /_   _//  /_   _// 
| || | ||  | ||__      | ||     -| ||-   `-| |,-  
| \\_/ ||  | ||__     _| ||     _| ||_     | ||   
 \____//   |_____||  /__//     /_____//    |_||   
  `---`    `-----`   `--`      `-----`     `-`'

Please enter what you see:

發送短信 : Preparation and evaluation of chitin-acrylic acid graft copolymer for waste water treatment. 1. Graft copolymmerisation of acrylic acid onto chitin