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

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發送短信 : Symmetry-enforced nodal chain phonons