?? 16??????C919“??”??????????????
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?????????????,???????????????????????????????????????????????,???????,???????????,????????????????????????????“???”???????????800??????,???????????600??????????
??????????????????????????????????????,??????1200?????
????????????????????????????????,????????????“???”“?????????”??,?????65%?
16??????C919??????
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????????,???????10??????C919????,??????????????????3????????????C919??,???????????????????????????????????????5???????????????,??????????????????400???????????3????C919????,????????????????????????????????????4??
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