上映日期：2010片长：47
主演：未知
导演：未知
《人工奇迹：大峡谷天空步道》(2009)原名《》字幕下载
The episode documents the inspiration and engineering behind the construction of the Skywalk attraction at the Hualaipai Nation's \"Grand Canyon West\" village. Skywalk allows visitors to stroll out on a cantilevered bridge above a cliff, and peer directly through the glass floor to see the Grand Canyon floor 4,000 feet below their feet.| 日期 | 资源名称 | 类型 | 语言 | 下载 |
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