????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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