發送短信 : Zeolite beta catalysts for n-C7 hydroisomerization

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