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"Hazards and Control of Noise" Acoustic Phenomenon PPT Courseware 8
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"The Generation and Propagation of Sound" Sound Phenomenon PPT Courseware 12
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"The Utilization of Sound" Sound Phenomenon PPT (Class Assignment)
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"Slow Voice" PPT of two lyrics by Li Qingzhao
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"The Generation and Propagation of Sound" Sound Phenomenon PPT Courseware 11
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"The Generation and Propagation of Sound" Sound Phenomenon PPT Courseware 14
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"The Generation and Propagation of Sound" Sound Phenomenon PPT Courseware 13
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"Hazards and Control of Noise" Acoustic Phenomenon PPT Courseware 8
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