(???????)???C919????“?????” ???? ?? ??? ???????

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

????

2025????????“??????”??

???? 1/8

1??17????,????,???????????(??)??????(????)??C919?????????????????????C919??,?????C919???,???C919????40???????????????????,???????C919????,?????10??C919??????

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

????????? ??