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

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

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

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

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

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

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

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

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