??????C919?????????????????ARJ21?

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

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

??????????????????C919?????ARJ21??SAF???????????????????????????????????????,??????????“????????????????????”????????,???????,?????????????(3?????????????????)???????40%,???????????????????,???????

??????????????????,??,???,?????“?”,?????????????????“?????”,??????“????”,??????“????????????????????”,????????????????????????????“?”(??)???

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

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

(????? ?? ??????????????? ?????????????? ??????????? ???????????????? ????????)

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