????:2024-06-05 23:27:26 ??:????
????:??????:??????????
?? ???? ???“????????????????????”(??)???????
??C919??????? ????
???? 1/56????5???????????????????,???????????????????B-001Q??ARJ21???????,????ARJ21??C919????,?????,???1??,???????????????(SAF)???????????????,?SAF?????????
?????:??????????
?? ??????????