????:1??????:???????????

2??????????

3??????????

4?????

5???sn??

????????11??27?????? (???????????????? ??)11??27????,????????8???????????27????,?????????,8??????????????,27???“???????????”?????????

????8???????????????

?,???????8?????,??7.61????,??????19?????,???????????????,??????????????,??????“???????”,?????????“????”???

?????????8?????????????,?LED????????,?????;?????????????????????????,????;????????,???????????????;???????????????,????,??,???????……

???????????27??????,?????????,???????????????,???24.86?????????,????23?????“????????????‘????????,????????’??????”?????????????????????,????“?”???

????????27??????????????

????????????,??,???,????????????????;??“???????????”??????????“??????????????”???????????????,????????????????,????????????????????,????????

????,????????“?”??????????????????????????????????,???????????????,??“?????????”,?????????????????????,?????????????????????????????????,??????????????,????????????????????,??????????,?????,???????????????

??????????????27?????????????????????

??????????,8?????????????????????27??“??”“?????????”,??????????????????????,????????????????????????,???????????????????????,???????,??????,???????????,????(???)

?????????????????:???