Visitors experience holographic projection in telecommunication, computer and information services exhibition hall during the 2021 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, Sept. 4, 2021. (Xinhua/Xu Qin)
In pics: exhibitions at CIFTIS in Beijing
Source: Xinhua| 2021-09-04 19:27:14|Editor: huaxia
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