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China: World's longest undersea high-speed railway tunnel begins 'journey under the sea'
By Caihong Wen
Giant TBM Dinghai began excavating
English:
https://english.www.gov.cn/news/202410/23/content_WS6718b978c6d0868f4e8ec345.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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