00000nz  a2200000n  4500
001  KSH1997000289
005  19970428105102
008  970428 n azknn|abn          |a a|a    | 
150  ▼a침식 단구[浸蝕段丘]▲
550  ▼wg▼a단구(지형)[段丘]▲