000  $anz n  2
000  $a주제어
001  $aKSH2002004812
005  $a20021231000000
008  $a020127 n azknnaabn          |a a|a    | 
150  $a역조[逆潮]
450  $a립 커런트[rip current]
450  $wr$i영어$arip current
550  $wg$a조류(파도)[潮流]
550  $a해류[海流]