??
????????????2???????????12????????(???????????)????????????,??????????????,????LED??????????……???,???????????,??????????????
???????????????????,???????????????“???????????????????”?????????????«??????????»,??????“?,???????????????????,??”????????????,??
2??12?,???????????????“?????”?????????,??,????,????????,??
“?,?????????????????????????”??,????????,?????????????
??,??
????????,????????????????????????????????,“??????????”??????????????????
?????????,?????????????,???????????12????,???
?,“?????”????,?“???????????????”????????,???????“??”,???????????
“???????2?????,??????”?,???,?????,????????????,????
??????,??????????????……??,?????????,????,????????????????????????????????????
????????????????????,?????????????,?????????,??????????????????????????????;??“?????”??????“????????????????”????????,?????????????,?????????????????????
???????????????,??????????????,????????????????(??)
????????:?????????????????????
?????(??)?????“????????”??:??????????????