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

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發送短信 : Natural frequencies formula for simply supported Mindlin plates