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

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發送短信 : Linking (n - 2)-dimensional panels in n-space I: (k - 1, k)-graphs and (k - 1, k)-frames