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![sandraAFRL Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::396795992.png) Sandra Pérez [@sandraAFRL](/creator/twitter/sandraAFRL) on x XXX followers
Created: 2025-07-20 18:35:33 UTC

The Harima Nada Undersea Tunnel carries the Sanyo Shinkansen X km beneath the Seto Inland Sea, a marvel of underwater high-speed rail engineering. #Shinkansen #UnderseaTunnel


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**Related Topics**
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[Post Link](https://x.com/sandraAFRL/status/1947002454949687609)