000  $anz n  2
000  $a주제어
001  $aKSH1998042356
005  $a20031021011330
008  $a980513 n azknnaabn          |a a|a    | 
150  $a도체 구멍 간격[導體--間隔]
450  $wr$i영어$aconductor to hole spacing
550  $a도체(물질)[導體]