带语音播报万年历原理图\20070521\Backup of 整体电路印制板.PCB ......................\........\Backup of 电路(制板).PCB ......................\........\Previous Backup of 电路(制板).PCB ......................\........\数字时钟.Bkp ......................\........\数字时钟.ddb ......................\20070521 带语音播报万年历原理图