發送短信

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 _    _     ______    ____      _____     ______  
| || | ||  /_   _//  |  _ \\   |  ___||  /_   _// 
| || | ||   -| ||-   | |_| ||  | ||__    `-| |,-  
| \\_/ ||   _| ||_   | .  //   | ||__      | ||   
 \____//   /_____//  |_|\_\\   |_____||    |_||   
  `---`    `-----`   `-` --`   `-----`     `-`'

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發送短信 : LONG-TERM DEFLECTION OF PRESTRESSED CONCRETE BEAMS