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Construction workers measure gauge at the Huangshan North Railway Station on the Hangzhou-Huangshan high-speed railway in Huangshan City, east China's Anhui Province, Jan. 17, 2019. Construction workers of the Jixi north fixing section of the China Railway Shanghai Group Co., ltd, most of whom born in 1990s and who began their work before the official open of the Hangzhou-Huangshan high-speed railway, are responsible for high-speed rails fixing at the mountainous area in southern Anhui Province. (Xinhua/Liu Junxi)

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