00000nz  a2200000n  4500
001  KSH1998017541
005  20030802012822
008  980429 n azknn|abn          |a a|a    | 
150  ▼a관상감 관천대[觀象監觀天臺]▲
550  ▼wg▼a천문대[天文臺]▲
550  ▼a관상감[觀象監]▲