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

2?????90????????

3?????????

4??????????

5???????4?????

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

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

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

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

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

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

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

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

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

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

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