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             ___      ______   __   __   _____    
    ___     / _ \\   /_____//  \ \\/ // |  __ \\  
   /   ||  / //\ \\  `____ `    \ ` //  | |  \ || 
  | [] || |  ___  || /___//      | ||   | |__/ || 
   \__ || |_||  |_|| `__ `       |_||   |_____//  
    -|_|| `-`   `-`  /_//        `-`'    -----`   
     `-`             `-`

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發送短信 : Free-electron-driven X-ray caustics from strained van der Waals materials