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Vertical Screen: Young Industrial Turbine Specialist in Glasses Standing at a Table With an Innovative Invention. Female Professor Using Tablet Computer to Develop a High Tech Prototype Electric Motor

视  频 ID：  1101744809
版      权：  Gorodenkoff
视频长度：  0:17
横纵比率：  16:9
所属分类：  人物 科技 
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