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Zhongguancun Forum exhibition showcases newest tech

chinadaily.com.cn | Updated: 2021-09-25 16:59
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A visitor takes a photo of Beijing-Zhangjiakou high-speed railway models at the Zhongguancun Forum exhibition in Beijing, on Sept 25, 2021. [Photo by Zhu Xingxin/chinadaily.com.cn]
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