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High gain antenna system on telecommunication tower slow tilt 4K 2160p 30fps UHD footage - Base station for mobile and television communication against blue sky 3840X2160 UltraHD tilting video

视  频 ID：  19484230
版      权：  trucic
视频长度：  0:06
横纵比率：  16:9
所属分类：  科技 物体 
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