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2025-01-21 08:48:08 45411

?????????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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