أرسل هذا في رسالة قصيرة: Vibration of laminated orthotropic plates using a simplified higher-order deformation theory

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