發送短信 : Further development of expert system for welding personnel qualification : ISO 9606-1

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