發送短信 : Biconcave micro-optofluidic lens with low-refractive-index liquids

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