أرسل هذا في رسالة قصيرة: FUNCTIONALLY GRADIENT MATERIALS AND THE MANUFACTURE THEREOF

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| |  | ||  /_   _//  /_   _//   / _ \\  |  __ \\  
| |/\| ||   -| ||-   `-| |,-   / //\ \\ | |  \ || 
|  /\  ||   _| ||_     | ||   |  ___  ||| |__/ || 
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