أرسل هذا في رسالة قصيرة: Bore-center annular shaped charges with different liner materials penetrating into steel targets

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