00000nz  a2200000n  4500
001  KSH2002010645
005  20021011000000
008  020417 n azknn|abn          |a a|a    | 
150  ▼a원주각[圓周角]▲
450  ▼a원둘레각[--角]▲
450  ▼wr▼i영어▼aangle of circumference▲
550  ▼wg▼a각도[角度]▲
550  ▼a원둘레[圓--]▲