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??1??20??????????????? ???????????????????????,?,????????????«????»(GB16171.1-2024),????????????2012????????????«????????»(GB 161712012),?????????????????????,?????????????,??????????????????
????,???????,2023???????4.9???,?????????70%???????,?????????????????????????????4????,????????????????,??,????????????????????????????????????????????????,??,????
????????,??????????????????????????????????????????????????????50%?40%?70%?50%???????????????????,???????????????,???????????????????????,??2027???????????1??1?????????????,??,?80%??????,??????????? ?????????????????????:?????
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