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  _  __     ___      _____     _____             
 | |/ //   / _ \\   |__  //   |  ___||     ___   
 | ' //   / //\ \\    / //    | ||__      /   || 
 | . \\  |  ___  ||  / //__   | ||__     | [] || 
 |_|\_\\ |_||  |_|| /_____||  |_____||    \__ || 
 `-` --` `-`   `-`  `-----`   `-----`      -|_|| 
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發送短信 : Design of rotary actuated boring tool