000  $anz n  2
000  $a주제어
001  $aKSH2002034402
005  $a20021206144826
008  $a021206 n azknnaabn          |a a|a    | 
150  $a부식 특성[腐蝕特性]
450  $wr$i영어$acorrosion characteristics
550  $a부식(금속)[腐蝕]