?? ?????? ?????1???????268????????
????:1??????:??????
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?????????????2????????3??????????????????????? (??????????? ????????????)??3??,???????1????????,??16848??,???????268.7?????????????1.69?????,?????13.0%?17.1%?16.5%,??????
?????????????????,??????,???????????????????,?????1???????8.6???????????,?????????9????1??25??95166??????,?????,?90%,???????????????????????????????????“??”???
?????????,????,????????,????????????????????????,?????????????????????????B787?A330?A350???
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??,???????16?,???????????????80??????????,??1??????,??6.7??,??????84.4%?(??????) ???:???