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Through water and toxic gases, China digs through new challenging tunnel
China finish 8,287-meter tunnel in Yunnan Province. Xinmin Tunnel railway tunnel.
English news Xinhuanet:
cover tunnel photo by: Matt Brown from London, England / CC BY
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http://www.xinhuanet.com/english/2020-08/27/c_139320238.htm
Through water and toxic gases, China digs through new challenging tunnel - Xinhua | English.news.cn
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