00000nz  a2200000n  4500
001  KSH1998039522
005  20021101000000
008  980429 n azknn|abn          |a a|a    | 
150  ▼a자오환[子午環]▲
450  ▼wr▼i영어▼ameridian circle▲
550  ▼a자오선 관측[子午線觀測]▲
550  ▼a자오의[子午儀]▲
550  ▼a적위[赤緯]▲