00000nz  a2200000n  4500
001  KSH1998042719
005  20021022000000
008  980625 n azknn|abn          |a a|a    | 
150  ▼a광 이온화[光--化]▲
450  ▼a광전리[光電離]▲
450  ▼wr▼i영어▼aphotoionization▲
550  ▼wg▼a광전 효과[光電效果]▲
550  ▼wg▼a전리(이온화)[電離]▲