00000nz  a2200000n  4500
001  KSH1998007144
005  20021019225909
008  980429 n azknn|abn          |a a|a    | 
150  ▼a감쇠 진동[減衰振動]▲
450  ▼wr▼i영어▼adamped oscillation▲
550  ▼wg▼a진동[振動]▲
550  ▼a감쇠[減衰]▲
550  ▼a단진동[單振動]▲
550  ▼a전기 진동[電氣振動]▲