?? 16??????C919“??”??????????????

???????:1???18???????????,??12306??,????18?????????????8??,????1.75???????,??????????????????18??2???1????????????????,??

????????????:????“???”??????

?,????,????????????“???????????????”?“????”????????,????????????????“??????”??,????

????????,?????????????????????????????????????????????,??,???????,????????????????????????????????“??”??800???????????????????????????????????,????????????600????

??????????????????????????????????????????????????????????????,?????????1200?????????

???????????????????????????,?????????????????????????????????????“????????”“??”????,??????????65%?

16???C919????

??????????,?????16???????C919??,?????????????C919?????????

??,??10????C919?,??????????3?????C919???????????,?????????????????5????????????,??400???????3???????C919??,?????????????????????4????

??,??C919?????????????,???????????,??????,????