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World's 1st single-hole double-track undersea tunnel with speed of 350km/h broken through
The 9,781-meter-long tunnel is a project of the Shantou-Shanwei high-speed railway
https://english.news.cn/20250327/4f361a8654be41f896825e2dafeb0b6f/c.html
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://english.news.cn/20250327/4f361a8654be41f896825e2dafeb0b6f/c.html
World's 1st single-hole double-track undersea tunnel with speed of 350km/h broken through
english.news.cnWorld's 1st single-hole double-track undersea tunnel with speed of 350km/h broken through-