發送短信 : Surface damage in a Mn-Zn ferrite induced by laser chemical etching

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