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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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