?????? 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?????????????????????,??????????,???,???????????????????