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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