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三大运营商5G建设徘徊：4G没回本 5G万亿投入压力大
source link: http://tech.sina.com.cn/t/2018-04-02/doc-ifysveiu1691057.shtml
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每经记者刘春山每经编辑姚治宇“5G太热了，工信部要求我们谨慎对外。”近日，接近某通信企业高层的李靖（化名）告诉《每日经济新闻》记者。根据规划，我国最早2019年下半年部分城市就能用上5G，2020预计开始规模商用。5G的来临，意味着三大运营
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