i do - knock on the shell you can hear

i do - knock on the shell you can hear

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送交者: meiyou 于 2009-01-07, 16:42:32:

回答: you think the speaker can generate that low freq? 由 tinaliang 于 2009-01-07, 16:33:39:

that's not resonant frequency, besides, you don't want sound to be heard. (无内容) - tinaliang (0 bytes) 2009-01-07, 18:22:45 (291529)