أرسل هذا في رسالة قصيرة: Toughness characterization of DLC and Ti doped DLC

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