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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%????,???​​​​ ??????????????:????????