????:1???????wx:????????

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

3??????????

4??????????

5????????

??1?????????????5????????????????????????????? (?????? ??????????)???????????5?????,??2025?????????????????1?5??????????????????,???????????????,??????569???????????,?2024??????????14?????????????????,??43????????????????,????????1.3???;???,??????,????????????????????????

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

?????,????,????????252?????????,????4?,?????,????????????????????????????????????????,??

??????????????,????????????317??,??10???,?8???CRH2A?3????CR300AF??????????????????????????????,?,??????????????????????????????????????,????????????????

??????????????????????,????????????????????????,??,?????,?,?????????(??????????)

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