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