أرسل هذا في رسالة قصيرة: Pretreatment of silk-dyeing industrial wastewater by UASB reactor

  ______    _____    _    _      ___              
 /_   _//  |  ___|| | |  | ||   / _ \\      ___   
   | ||    | ||__   | |/\| ||  | / \ ||    /   || 
  _| ||    | ||__   |  /\  ||  | \_/ ||   | [] || 
 /__//     |_____|| |_// \_||   \___//     \__ || 
 `--`      `-----`  `-`   `-`   `---`       -|_|| 
                                             `-`