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China's first urban rail vehicle with dual-current system delivered in Chongqing (4)

(Ecns.cn) 16:55, October 21, 2021

Photo taken on Oct. 20, 2021 shows the inside view of a carriage of China's first urban rail vehicle with a dual-current system in Chongqing. (Photo: China News Service/Chen Chao)


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(Web editor: Zhong Wenxing, Liang Jun)

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