發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Esterification of free fatty acid and oil with fatty acid content over acidic heterogeneous catalyst