?? ??????? ?????????????75??
????:1???????:???????????
2?????
3???????????
4?????????
5????????
???:?????,?????,?????????????,????????????
??????75???????????????????,????????“????”????????????,???;????,1?????????????;?????,????????,???,??70??????;??????????????????,?????????????????“??”????????????????????,?????
???????????,??????????,?????????,????????????;????,????????,??????;??????,?????;???,?????“????????”????????,?????5???????????,??????????????????????????,???;??,????????????????????????,???????????
??????????????? ????????
?????,?????,???,???????????????????????,?????
???:????????
?????????,?????????????????,??????????????????????????,????????????????“????????”?????????????,?????????????????“????????????”?
???????:????? ????
???,???????????????????,?????????????????,????LED???????,?????“????????”?????
????????:?????????? ?????
??????,???????????????????,?????,?????
???????????????? ??????????
???,??????????,???????????????“??????????????”,????????????,???????????????????,????,??? ???:??????????????????