A visitor learns about compressed air energy storage technology at the exhibition center of Zhongguancun National Independent Innovation Demonstration Zone in Beijing, capital of China, May 26, 2023. At the exhibition area of this year's Zhongguancun Forum (ZGC Forum), a myriad of intelligent technological products and applications are shaping a promising vision of future life for people from across the globe. (Xinhua/Zhang Chenlin)
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