發送短信

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

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發送短信 : A simple design tool for the calculation of effective section area for class 4 open section using MS-excel