發送短信 : An ion beam deceleration lens for ultra-low-energy ion bombardment of naked DNA

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