00000nz  a2200000n  4500
001  KSH2000025538
005  20000417132153
008  000417 n azknn|abn          |a a|a    | 
150  ▼a띠계[--系]▲
450  ▼wr▼i영어▼aband system▲
550  ▼a밴드 스펙트럼[band spectrum]▲