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标题: DTMF???????????· [打印本页]

作者: ????    时间: 2007-4-12 13:40     标题: DTMF???????????·

?????ó??????"AT89c2051????9200b·???????????8870????????BCD??·???AT89C2051"?????ò??°??????±à±à????°????????????DTMF???????????·,?°????AT89c2051????9200b??????????????,?ó????8870???????????????????×???????,???????????????í?? ?????ó???ó?????????à?????÷?? ????????????
作者: zing    时间: 2007-4-13 08:40

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