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

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發送短信 : RAIL CRACK MONITORING USING ACOUSTIC EMISSION TECHNIQUE