發送短信 : Health condition monitoring of rotating shaft based on electrical signature

 __   __    _____    _    _      ___     _____    
 \ \\/ //  |  ___|| | || | ||   / _ \\  |  __ \\  
  \   //   | ||__   | || | ||  | / \ || | |  \ || 
  / . \\   | ||__   | \\_/ ||  | \_/ || | |__/ || 
 /_//\_\\  |_____||  \____//    \___//  |_____//  
 `-`  --`  `-----`    `---`     `---`    -----`