00000nz  a2200000n  4500
001  KSH2002014347
005  20021111103920
008  020625 n azknn|abn          |a a|a    | 
150  ▼a2차 함수[二次函數]▲
450  ▼a이차 함수[二次函數]▲
450  ▼wr▼i영어▼aquadratic function▲
550  ▼wg▼a함수[函數]▲