00000nz  a2200000n  4500
001  KSH2000032519
005  20000831001343
008  000831 n azknn|abn          |a a|a    | 
150  ▼a비중계[比重計]▲
450  ▼wr▼i영어▼ahydrometer▲
450  ▼wr▼i영어▼aspecific gravity balance▲
550  ▼wh▼a고체 비중계[固體比重計]▲
550  ▼wh▼a기체 비중계[氣體比重計]▲
550  ▼wh▼a당액 비중계[糖液比重計]▲
550  ▼wh▼a액체 비중계[液體比重計]▲
550  ▼a비중[比重]▲