00000nz  a2200000n  4500
001  KSH2001012223
005  20021127000000
008  010703 n azknn|abn          |a a|a    | 
150  ▼a비중 천칭[比重天秤]▲
450  ▼wr▼i영어▼ahydrostatic balance▲
550  ▼wg▼a고체 비중계[固體比重計]▲
550  ▼wg▼a액체 비중계[液體比重計]▲