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Pic story: Development of China's telecom industry in 4 decades

Xinhua | Updated: 2018-11-14 14:33
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Combined photo shows Wang Yin (left upper) talking with his father Wang Yutao (lower) who is in Ecuador for electrical work via video chat system in Changchun, Northeast China's Jilin province, June 18, 2016. [Photo/Xinhua]
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