Hundreds of kilometers long tunnel, high-speed train will run in the sea, know how?
Last Updated:December 04, 2025, 13:05 ISTGeneral Knowledge: Do you know that work is underway on a plan to run a ...
Tag: Deep-sea tunneling
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Last Updated:December 04, 2025, 13:05 ISTGeneral Knowledge: Do you know that work is underway on a plan to run a ...
