000  $anz n  2
000  $a주제어
001  $aKSH1997000053
005  $a19970414231834
008  $a970414 n azknnaabn          |a a|a    | 
150  $a다이내믹 스피커[dynamic speaker]
450  $wr$i영어$adynamic speaker
550  $wg$a확성기[擴聲器]
550  $wh$a리본형 고음 스피커[--形高音--]