أرسل هذا في رسالة قصيرة: Assessment of lubricating oil degradation in small motorcycle engine fueled with gasohol

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