000  $anz n  2
000  $a주제어
001  $aKSH2004026989
005  $a20040815170101
008  $a040815 n azknnaabn          |a a|a    | 
150  $a기어 커플링[gear coupling]
450  $wr$i영어$agear coupling
550  $wg$a커플링(죔쇠)[coupling]