????:1?????9598??:????????

2???????????????

3?51??app????ios

4??????

5??????

??????????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?????????????,???,??????????????????????????????????????????

(????????) ?????????????:?????????