000  $anz n  2
000  $a주제어
001  $aKSH2002008874
005  $a20021130000000
008  $a020320 n azknnaabn          |a a|a    | 
150  $a올덤 커플링[Oldham's coupling]
450  $wr$i영어$aOldham's coupling
550  $wg$a커플링(죔쇠)[coupling]