00000nz  a2200000n  4500
001  KSH2002010643
005  20030114102338
008  020417 n azknn|abn          |a a|a    | 
150  ▼a원둘레[圓--]▲
450  ▼a원주(원둘레)[圓周]▲
450  ▼wr▼i영어▼acircumference▲
550  ▼a원(기하학)[圓]▲
550  ▼a원주 정리[圓周定理]▲
550  ▼a원주각[圓周角]▲
550  ▼a원주율[圓周率]▲