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

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

3???????

4???????????

5????????

????????????8????28???????? (?? ????)??C919??8??????????28???????,?????(??)???(??????????)????????????????(???????????)??C919?????????????C919???

8??????????????28??????????????????,??????????????C919??,????????????????? ??? ????

???????????“????? ??”??,???????????,??C919??C919?????????????????????????????????????????«?»??????,????????????«???»«?????»??«????????»?

???,?C919????,???????158???????????????,??8??150????????C919??,?164????,??8????????18?138???????????????C919????,???????????????????,??????

8?????28??????????,???C919?????????,???? ???? ????????

?????C919?????,??????????????,??????????????????????????????????????????,?,???????????C919?????????

????,??????????????9???????C919?,?(??)??????????????????????,C919???????????,????15??,??????????5???????,??3600???,????????1???

C919??????,????158-192?,?????????????4075-5555????2015????11???????,C919??,2017?????????5?????,2022???????????????9????????,2022?????????????12?,2023????????5???C919?????????,????????????????????????????????(????????????????)

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