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????????????,???????,?????????????????,????,?????????????GPS??,????“??????????”??????,????????????????,????????????

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

???,??,??????????????????,??????????4G??“??????????????????????”??????????,????5000????????500????,?????????????????????,????????????????

??????????,??????????????,???????????????,?6???,??????????????????????120????,???????????????

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