Yeni Zigana Tüneli (Zigana Taban Tüneli - Zigana Base Tunnel)
Karadeniz Bölgesini Doğu Anadolu Bölgesi'ne bağlayacak tünellerden Yen...Ulaştırma, Altyapı Bakanlığı'nın yayınıdır. Difference between New Zigana Tunnel (Zigana Base Tunne...HS2 Chiltern tunnel with crosspassageway visible to the right November 2022 50591
HS2 Chiltern tunnel with crosspassageway visible to the right November...s://mediacentre.hs2.org.uk/news/breakthrough-for-hs2s-longest-tunn...ps://mediacentre.hs2.org.uk/resources/f/construction/chiltern-tunne...
cover tunnel photo by: Matt Brown from London, England / CC BY
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