?? ?????????????????
![](https://image.chezhanri.com/2019/0521/20190521163739171.jpg)
????:1????????????:????v
2???????
3????????
4??????????
5?????
?????????6?15???? ???,6????9??,???????????????????????,?????,5???,????????????????5???????????,??????,?,????????????????,15?17??,?????????????????????????,????????????,???????????
6??15??,???????????????????????????????????????????,??????????????????????????14??,???????????????,?????????????
???????????,??????,?????????????;???????,????????,??????????????;???????????????????????????????????????????,??????????????????“??????????”???,????;??,?????,???????????????
?????????????,???????????????????????????????4????????????????????????????????????????????????????????5??????????????(?????????????)??3??????,????????????????????3????81??????,?????????????3???3168????????????????????????1279?,??????????????25???????????82??????370MHz????190???????????????????2841??,????? ???:??????