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             ___      _____    __   __    ______  
  ____      / _ \\   / ____||  \ \\/ //  /_   _// 
 |    \\   | / \ || / //---`'   \ ` //   `-| |,-  
 | [] ||   | \_/ || \ \\___      | ||      | ||   
 |  __//    \___//   \_____||    |_||      |_||   
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發送短信 : Design and implementation of reconfigurable intelligent surface control circuits