發送短信

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

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發送短信 : Generalized composite nonlinear feedback control technique to track non-step references