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• 05:25, 10 May 2012 (hist) (diff) Nm ReavesDeweese690 ‎ (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…') (top)

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