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             ___     _    _    _    _      _____  
    ___     / _ \\  | \  / || | || | ||   / ___// 
   /   ||  / //\ \\ |  \/  || | || | ||   \___ \\ 
  | [] || |  ___  ||| .  . || | \\_/ ||   /    // 
   \__ || |_||  |_|||_|\/|_||  \____//   /____//  
    -|_|| `-`   `-` `-`  `-`    `---`   `-----`   
     `-`

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發送短信 : Quantitative determination of stone fragmentation efficiency