أرسل هذا في رسالة قصيرة: Development of nanofiltration dual-layer hollow fiber membranes for forward osmosis

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