000  $anz n  2
000  $a주제어
001  $aKSH1998042913
005  $a20000303114347
008  $a980701 n azknnaabn          |a a|a    | 
150  $a광화 가스[鑛化--]
450  $wr$i영어$amineralized gas
550  $wg$a가스[gas]