????:2025-01-06 08:48:30 ??:????
????:??????????:???????????
??????1+1???????CR450 ???
?,??????CR450????,??450??????????????,????????????400?????????,?????????????????????????????????????????????????????????,???????????????????CR450?????????????????????????????????????«??1+1»???,????????
??????????????“CR450”,C????China,R????Railway,????????????,????350?????????????????,?????,????50???????,??,????????????,??????????????????,????????
CR450?????????????????
??????
???????? ????????????:CR450????????,????????????????????????????,?????200???????200????????????,???????????????????????????,?????????60????????????????????????????CR450??,?????????????????????????,??,????????????????????????????????????????????????????????????????????,?????????????????,????
50?????????
???????????????????????
??????? ??????:?????????????2018???????,??,?????????,?????????????
?????????????????,?????,?????,?????????????,????????
50????????,?????????????,??,???????,?????,????????????
??????????????????,??,???????????????????????????CR450??????,??????22%?
????
???? ???:??,??,???????????????????,??????????????,???,????????,?????????????????????,????CR450?????????????400???????????????,??,????????????????????????????????????????
(??) ???????????????????:????
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