Tunnel Dajin No.1 of the Huanggang-Huangmei high-speed railway in Huanggang, central China's Hubei Province, Dec. 22, 2020 drilled through.
Tunnel Dajin No.1 drill through
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cover tunnel photo by: Matt Brown from London, England / CC BY
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605-meter-long Tunnel Dajin No.1 drilled through - Xinhua | English.news.cn
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