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

2???????

3???????

4?2023???????

5?????

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

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

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

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

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

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

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

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

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

??:??