????:1????????:???????

2??????????

3????????

4?????1000?????

5?????????

2024????????????11????2???????????????,??2024??,?ARJ21???????C919?,???????????????????????????????????ARJ21???????C919??????????????????,?????

??????,ARJ21?????????,C919???????,??

???1:20???C919?C929???????????,1:20???ARJ21??,???????????????????1:32??ARJ21???????????????????????????????,C919??/????????????

??,ARJ21??????150???????,???600?,??????????150????,??1700?????C919???11???,??9????,?7????,??70??????????????(???:????????????????)

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