00000nz  a2200000n  4500
001  KSH1998016334
005  20021019000000
008  980429 n azknn|abn          |a a|a    | 
150  ▼a공극[孔隙]▲
450  ▼wr▼i영어▼apore space▲
550  ▼a공극 수압[孔隙水壓]▲
550  ▼a공극도 분포[孔隙度分布]▲
550  ▼a공극률[孔隙率]▲
550  ▼a공극비[孔隙比]▲
550  ▼a공극수[孔隙水]▲
550  ▼a토양 삼상[土壤三相]▲