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  • (cur) (prev) 05:25, 10 May 2012 ReavesDeweese690 (Talk | contribs) m (463 bytes) (Created page with 'The [http://evan2012yu.wordpress.com/2012/05/09/knowledge-about-piezo-buzzer-china/ piezo buzzer] use piezoelectric ceramic piezoelectric effect to drive the vibration of the met…')
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