International exhibition on modern railways held in Beijing

Source: Xinhua| 2019-11-20 22:27:03|Editor: Lu Hui
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CHINA-BEIJING-MODERN RAILWAYS 2019-EXHIBITION (CN)

Visitors look at a smart railway station monitoring system during Modern Railways 2019, an international exhibition on modern railway technology and equipment, at China National Convention Center in Beijing, capital of China, Nov. 20, 2019. (Xinhua/Zhang Chenlin)

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