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

2?????????

3?????

4???????

5????????

??2???4?? (??????)4???????????????,?,??565???????,??9.7??????

?? ?????? ??

???????,???????????????,???????????,2??????????????2??,?,??96654??,???

???????,??????????????????????????????????90%;???????????????????????????????100%?

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

????????????????????B787?A330?A350???????????????????(?????????????)

???:???