Design of monitoring and measurement system for the supersonic diffuser of COIL DEPENDENCE OF SOUND ABSORPTION COEFFICENTS UPON THE AREA OF SUSPENDED DIFFUSER AND ACOUSTICAL MATERIAL
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美[ˌsupɚˈsɑnɪk əbˈsɔrpʃən]英[ˌsju:pəˈsɔnik əbˈsɔ:pʃən]
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