000  $anz n  2
000  $a주제어
001  $aKSH1998035912
005  $a20040611215236
008  $a980429 n azknnaabn          |a a|a    | 
150  $a수압 시험관[水壓試驗管]
450  $wr$i영어$ahydraulic test tunnels
550  $a풍동[風洞]