?? ??????????? ????????????
![](https://image.chezhanri.com/2019/1205/0d6867899bbbc80919407ca327c61718.jpg)
????:1??????:????3????
2???????
3??????
4???????
5??????
6???????27???,????4????????,??????????????????,???????????,??
???????????????????????????????????????????,?????,?1200???
???,??,?????????????????????,??????“???”??????????????;???,??????,????“????”????????,??????????????
???????????????,??,??????,??????????????????5G???????????????????????????,?????????????????????
(???????????????? ???? ?? ??????? ????????)
??:???