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

2?????????

3?????

4?????????

5???????

???????11???27?????????????? (????????)??????4???????????;??????,??????????;?????,??????……???????????????????,???????????31???????,?????????????,?????????“??????”?

????????????

?????,????????????????????,??????????,????????,?????????????4?????,??????????????????????????????????,???,???

????,???????2006???????????,????2?????????,?GSM-R????????,??????????“?????????”,??????????????????“???”?

???????????????????,???,??????????????????????,??,?????,?????????????????????,????GSM-R????????????

???????????,???????????“?”??????,??????????????????????????????????????????2011??????,?????,????(??????????????)??????????,??????

???????????????,??????????,????????????????,????????????2012??,????“??????????????”“???????????????????”???

??????,?????????,?,???????,?????????????????,??????26??,???????????8???????

???????31??????,????????????????????????????????????????????????????????????,2023???????????,??????,?????(??????)

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