巨无霸机械工程在线播放

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高清2 选集 (共 6 集)

剧情简介

Massive machines require engineering extremes. 　　The massive man-made satellite, commonly known as the International Space Station, hurtling around the Earth at 27,600 km an hour, has been a temporary home for humans for the last 20 years. The biggest land vehicle on earth, a bucket excavator titled Bagger 293, that can move 240,000 cubic meters of dirt each day. Innovation has a...

巨无霸机械工程

巨无霸机械工程 在线播放

巨无霸机械工程在线播放