??????“??????????????”?

????:????QT??:????24????

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

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

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

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

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

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

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

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

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

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