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

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發送短信 : Modeling of the movement and stress distribution of a line-shaped item in a vortex