????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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