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

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發送短信 : Spherical cloaking with homogeneous isotropic multilayered structures