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China: Made-in-China TBM reached 106 meters below the sea level
China's independently developed submarine tunnel shield machine "Shenjiang No. 1" completed its excavation task and successfully reached 106 meters below the sea level.
http://finance.people.com.cn/BIG5/n1/2024/0820/c1004-40301902.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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