000  $anz n  2
000  $a주제어
001  $aKSH1999017380
005  $a19990614181437
008  $a990614 n azknnaabn          |a a|a    | 
150  $a내부 자기장[內部磁氣場]
450  $wr$i영어$ainternal magnetic field
550  $wg$a자기장[磁氣場]