發送短信

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

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發送短信 : An improved substructural identification strategy for large structural systems