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China goes deep, with 5G?network?in coal mine

By Sun Ruisheng in Taiyuan and Zhou Huiying in Harbin | chinadaily.com.cn | Updated: 2020-06-03 19:49
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A reporter talks with a coal miner through the country's first 5G network in an underground coal mine in Shanxi province, May 28, 2020. [Photo/Xinhua]

 

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