أرسل هذا في رسالة قصيرة: Distribution and accumulation of perfluororinated chemicals (PFCs) in water and sediment in two urban large lakes, Hanoi

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