????:2024-09-24 06:06:41 ??:????
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??????????????????????????,???????,??????????????????????????????2012????54????2023??????????????126???,?????????6.1%,??30%??????????????????,??,???????????????????,????????????5%???,???
?????????????????,????????,???????1.91%??2.64%,????34?????12????????????,???????,????C919???????????,“???”?????????,???????,?????????????,????????5G????????
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??????????????,??????,??????????????????????,2013?????????????1300????????,??????????698??????????????????????,??????5.1%???????????????????,????2.88????????2.39?????,“????????”???????????????????????????????????????????????????,??,????????????
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