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

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

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

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

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