0:00/0:05
倍速
  • x2
  • x1
  • x0.5
举报

Global connection and traffic modernization in smart city . Concept of future 5G wireless digital connecting and logistics networking .

视  频 ID:  1074224066
版      权:  BiancoBlue
视频长度:  0:05
横纵比率:  16:9
所属分类:  科技 运输 
商业用途

如何选择