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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%??????????,???????????​​​​ ??:????????????????