观看免费视频 Unique Bridge Design

Name: Unique Bridge Design
Uploaded: 2019-06-08T20:08:13Z
Duration: 2 min 52 s
Description: Engineering has advanced so fast that everything is easy now. Watch how they designed a bridge that can open and close for boats to go underneath.

(7.21 MB) 添加日期08 Jun 2019 播放91次桥 Technology Design Structure

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Engineering has advanced so fast that everything is easy now. Watch how they designed a bridge that can open and close for boats to go underneath.