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

2???95?????

3????????????

4?92,95,98?????

5???9598??

6??5???,???????????????????ARJ21??C919???????????????,????????????????,????????1?????????????????,?(SAF)????????,?????????SAF????????                   

???????????????????,???????,??????????????95%???SAF?????????????????,???????,??????????????????????????????????????????????,SAF?????????80%?????????????????SAF????????????????????????????????????,?????????????????????????SAF?????,????????????????SAF??????,??SAF?????????????????????????????                   

?????2022????SAF??????????????,?????SAF???????????????,??????????SAF???????????????????????,???????????2024???????????2??????????????,???????

??????????????????SAF??,?????“???”??????????????????????????????,??????????????????,??????????????(3???????????????)?????40%,????,?????? ???????:???????????????????