短語(yǔ)詞組短語(yǔ)bubble e oscillation 氣泡振蕩bubble e oscillation frequency 氣泡振蕩頻率bubble oscillation frequency 氣泡振蕩頻率free bubble oscillation 自由氣泡振蕩free bubble oscillation theory 自由氣泡振蕩理論 返回 bubble oscillation