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

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發送短信 : State estimation of power system with UPFC using interior point WLAV method