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