The Longest Underwater Tunnel / www.civilp.ir
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7 سال پیش
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China is building the world’s
China is building the world’s longest underwater tunnel beneath the Bohai Sea--at 76 miles
long it will pass through two deadly earthquake fault zones, will be longer than the current first and second-ranked underwater tunnels combined and will cost $42 billion.
7 سال پیش
در تاریخ 1396/05/24 منتشر شده
است.
66
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