门禁系统原理
????????????aws4z117r2y???????????????é????????????????????
aws4z117r2y????????????
??????è?????
??????????±?
(34)
??????????±???????
????????????
>??????????????????
2009061918:04???è?¨
????????????
?????????
??????
?????§é?????é?¨è????è??é?????é?¨???????????????????????è????????0?????????é?????2006112515:55
??¨???????????????????????¨????è???±????????±?é?¨?????§é?????é?¨???è????????????§é?????é?¨??????????????¨?????????????¤????é??è?????è???????§é?????é?¨??????è????è??é?????é?¨????????????????????
???é??è?????sssskyè????¨????????§
??????é?????????????????
????????????è?????è??????????????????????¨??¨???è?????????¤???????????????????????¤????????????°???????????????????????????
?????????è???????§è???????????????????§é???°?é?¨????????¨???????????????è???????????????????????????????¨??¨??????è????§???é?????è???????????????????¨???è??????????????è??????????????????????é??è???????¨??°???????§????è?????è?¨???
=========================?????è?????
????????????
??????é?????è???¤??°?????????¨é????????é???????¨?????????é???§??????????è??????????????é?????è???????¤??????é????????è????????è?°???????????¨è?????è??é??è§?è?????????????????é???????¨?¤????é??é??????????????è?????é??????§????è??é????¤?????????é??????????????è§???°é??è????????????????¨?????????????????????????????????è???????????????????????????????????????¤?è???????????è????????
