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

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