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Impossible Engineering

自然 · 旅行 · 历史
S7 E World's Tallest Bridges
本集简介

The world's tallest and most advanced bridges were built with cutting-edge innovative technology, and behind-the-scenes access reveals how these colossal structures are built. This is a mashup of S02E02, "World's Tallest Bridge" (Millau Viaduct) and S05E09, "Himalayan Mega Train" (Qinghai-Tibet Railway).

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