00000nz  a2200000n  4500
001  KSH1998001284
005  19980429124951
008  980429 n azknn|abn          |a a|a    | 
150  ▼aSDLC▲
450  ▼wr▼i영어▼asynchronous data link control▲
550  ▼wg▼a프로토콜(통신)[protocol]▲