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結果 : world's longest underwater rail tunnel

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5:38

How the world's longest underwater tunnel was built - Alex Gendler

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How the world’s largest underwater tunnel is being built | BBC News

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Railway Architecture | The Longest Underwater Tunnel in the World | FD Engineering

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Undersea Rail Tunnel Between Japanese Islands: Seikan Tunnel Explained

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How Europe's Building the World's Longest Underwater Tunnel!

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Germany and Denmark are building the world's longest underwater rail and road tunnel | DW News

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Inside the $8.7BN Fehmarn Belt Tunnel: The World's Longest Underwater Connection

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Inside the World's Longest Underwater Tunnel – Fehmarnbelt Tunnel

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Unbelievable! The sea is full of water, how is the undersea tunnel built?

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中国がわずか110日間で世界最大の海底トンネルを建設した方法

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Fehmarn Belt Link: Are the benefits of the world's longest underwater rail tunnel worth the damage?

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The Channel Tunnel: Building the World's Longest Undersea Link

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World's longest underwater rail and road

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America Is Shocked! China's Insane Construction Tech Creates the World's Longest Underwater Tunnel!

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Top 5 Underwater Trains In The World -- You Will Love Number 1!

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World's Longest Underwater Tunnel Costs $7 BILLION!

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Riding the Japan's Underwater Bullet Train from Hokkaido to Morioka

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