00000nz  a2200000n  4500
001  KSH2005012208
005  20050416215915
008  050416 n azknn|abn          |a a|a    | 
150  ▼a음향장[音響場]▲
450  ▼wr▼i영어▼aacoustic field▲
550  ▼a유동장[流動場]▲
550  ▼a음향[音響]▲
550  ▼a음향학[音響學]▲