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China's self-developed tunneling machine rolls off production line(1/4)

2024-11-01 11:15:40 Ecns.cn Editor :Li Yan
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A large-diameter tunneling machine with a record-breaking excavation diameter of 16.64 meters rolls off the production line in Changsha, central China's Hunan Province, Oct. 31, 2024. (Photo: China News Service/Yang Huafeng)

Measuring 145 meters in length and weighing about 5,000 metric tonns, the drill will be utilized in the construction of the Haitai Yangtze River Tunnel, the world's longest underwater highway.

A large-diameter tunneling machine with a record-breaking excavation diameter of 16.64 meters rolls off the production line in Changsha, central China's Hunan Province, Oct. 31, 2024. (Photo: China News Service/Yang Huafeng)

A large-diameter tunneling machine with a record-breaking excavation diameter of 16.64 meters rolls off the production line in Changsha, central China's Hunan Province, Oct. 31, 2024. (Photo: China News Service/Yang Huafeng)

A large-diameter tunneling machine with a record-breaking excavation diameter of 16.64 meters rolls off the production line in Changsha, central China's Hunan Province, Oct. 31, 2024. (Photo: China News Service/Yang Huafeng)

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