000  $anz n  2
000  $a주제어
001  $aKSH1998042344
005  $a20021214000000
008  $a980511 n azknnaabn          |a a|a    | 
150  $a통신 회선 제어[通信回線制御]
450  $wr$i영어$acommunication line control
550  $a통신 회선[通信回線]