000  $anz n  2
000  $a주제어
001  $aKSH1998030680
005  $a20021220000000
008  $a980429 n azknnaabn          |a a|a    | 
150  $a포논 메이저[phonon maser]
450  $wr$i영어$aphonon maser
550  $wg$a메이저[maser]