000  $anz n  2
000  $a주제어
001  $aKSH2005010569
005  $a20050731180659
008  $a050731 n azknnaabn          |a a|a    | 
150  $a안전 하중[安全荷重]
450  $wr$i영어$asafe load
550  $wg$a하중[荷重]