000  $anz n  2
000  $a주제어
001  $aKSH2004029483
005  $a20040829222045
008  $a040829 n azknnaabn          |a a|a    | 
150  $a석탄 검사기[石炭檢査器]
450  $wr$i영어$acoal testing instrument
550  $wg$a광석 검사기[鑛石檢査器]
550  $a석탄[石炭]