?? “??????????????”???? ????:???
![](https://image.chezhanri.com/2019/0808/20190808184937543.jpg)
????:1??????????:??????????
2?????95???
3???????
4???????????
5????????
??:?????????,??,?????????????????????????????????LED????,?????????????????????????“???”??????,“??????????????”???????????????????????26?????,“???????????”?????????????????,???
?,????33?,????????5???,?????,?????????????,?????????????????,???????????????,????,????????????7?????????25?????????????,????????????????,?????,???????????,??,??????????????????????“??”?????????,??,??????????“???????????????????????????????”??????????????,??????????,???
??????????:????????????????