?????? ????1600??????“?????”

????2???????????5????????????????? (????????????????????? ?????????)????5?????????,??,??????????,???1600??“????????”?????,??????????3???????????????????????????????????3.5kg?????(??????)??

?????????????????????????,????20???????????????????????????????,??,????????????????8?????????????????,????????????????????,????????,???????????????,???????????????

???????????“?????,????”??????????????,??????120?,????????????????????????????????????,????????,???????????

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