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How the 726-Foot-Tall Hoover Dam Was Built Ahead of Schedule

3,122 Lượt xem· 10/20/23
Smithsonian Channel
Smithsonian Channel
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Trong Discovery

The world s biggest dam at the time of its construction, Hoover Dam solved the problem of the overflowing Colorado river with sleek design and brilliant American engineering. From the Series:...

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