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

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發送短信 : Experimental evidences of topological surface states of β-Ag2Te