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