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

2??????????98

3??????????

4?????vx

5?2023?????????

2025?????1?1????????????????

?????

??????

?????????

??????

???????

2025?????????

?????????

2025?

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

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

?

??

????????

2025???????

???????

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

2025?????????????

????

???????2025????

??????

???

?????

???????????

??????????

????????

2025?????

?

????????“??”

????????????41?????????

?????

?

??????74°56'

???????????

2025???

??

2025????????????

C919???????????????“????”

???

????C919???

MU721“??????????”?

??????????

????

C919?“????”?????

????“??????????”?????????????

???????

????

???????????

????????

??

??

2025??????????

“??????????”?

????????

????

????????2025?????

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

??????“??”?????

??

??????

?????

????????????????:????????????2025?????????,????:???????????????,??!

2025

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

??

?????!

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

???????????

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

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