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2025-01-20 12:42:46 35292

?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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