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

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

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

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

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

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

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

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

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