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?????????????????,??,?????????????????????????2012??????????????????54?????????2023???????????????126??????????????????????,??6.1%,????????????30%?????????,???,????????????????,????????5%??,??????????

???????,????,??????1.91%???2.64%,?????????????34??????????12????????????????????,???????????????????????,????????C919???,“???”??,??????????????????,??????????,????????????????5G??????????

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??????,?????????????????????????????,???????????????????????????,??????????????????????????????,??,????53.1%?????????66.16%???????????,?????????????

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???????????????????,???????????,??????,2013??1300??????????????,??????????????????698????,???????????????5.1%????????,????2.88????????2.39???????????,“???????????????????”???????????????????????????????????,?????????????????,???????????

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