????:1?????????:???????????

2?????????

3????????????

4???????????

5???????

????,6?????7?????8??????????,????????

???

6?18????????,«2023????»????????????,2023????

????,????,??????(6?7???????????8????????????)???

?«???»,????????????????“6?7????8??????”??,???????

6??????????,????????????????4??????????????;

7???????,???????????????????????????????????????????????????;

8???????????,???????????????????????????????????????????????????????????????,????????????????????????

????,????

???:6?7??8??,??:???

???,“6????7???8????”???80%??(?????????????????),??????????????90%?????,???“?123?”“????123?”……

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

?????????????,14???,???????219.0??????????,?????8.5%;??172.7????,???4.5%;?????????55.5???,???5.2%?

???,?????“????????”??

??????“???????????????????”????“??”????????102???,???????300?????????????,?????1.8???14????????????????,???????10016???,??????????

“???????”“??”??????????,????600???;???95%?????????????50???????;??98%?????????????20???????;??????8??,???????100??90%??????????????????,?1.7?????????????

????????????????????C919??????CR450?,?????“????????”??????

??,??????????,“????,??????????”??????

???“??,???????????”???:

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

????,???

(“??”????)

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