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

2??????????

3???????????

4????????

5??????

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

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

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

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

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

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

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

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

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

??:????????