أرسل هذا في رسالة قصيرة: Fine grained bismuth sodium titanate ceramics prepared via vibro-milling method

 _    _    _    _     _  _      ___              
| |  | || | || | ||  | \| ||   / _ \\    ____    
| |/\| || | || | ||  |  ' ||  / //\ \\  |    \\  
|  /\  || | \\_/ ||  | .  || |  ___  || | [] ||  
|_// \_||  \____//   |_|\_|| |_||  |_|| |  __//  
`-`   `-`   `---`    `-` -`  `-`   `-`  |_|`-`   
                                        `-`