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

2???????300???

3???????

4???????

5??????wx

????????????????????2?????12???????????(?????)????,????,???????????????LED?????……?,??????,?????????????

???????????????,??“???”??????????????«?????????»,???????“??,???????????????????????,????????????????”???????,????????????????

2?12?,???????????????????“??????????????????????”???????,?????????,?????,????,????

2????????????12???????????,???????????? ? ???????????

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

????,?????

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

????????,????????????,??????????12???????????????,??

2????????????????12?,“????????????”???????? ?????????????

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

“?2?????????????,??????????????”????????????????,???,????????????,??????????????,???

???????????????????,????????????????……?????????,????????,????,???

2???????11??????,??????????,“?”??? ?

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

??????????????????,????,??????(???????????)

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