?? “??????”????????????
????:1???????????:???????????
2??????????
3??????????
4??????????
5????????
???????11????????23??? (?? ?????????????????????????????)“??????????????”???,??????????,???????????
????????????? ??,???????,???????????????????????«????»??“???????????”???????????
????????????,???????????7??,????????“??????”?????????????????????????????????????
????,????,????50??????“???”?????????????????????????????????????????,???????,???????
????????????? ????“???2003??,????????21??,??,?????????????????????????,????????????????”????,??,???????????????????????????????LED??,????????????????,????????,???25??????????
??,?????????????,??????????????????????????????????????,????“?????????+??”,????????????,???,??,????????????????????,??????,???????????,????????,????,????????????????????
??????,??,????20????,??????????????????????,??????????????????????7.52???????????????,???????9.69?,?????12????????????????,???????1????(???????????)
????????:?????