0:00/0:08
倍速
  • x2
  • x1
  • x0.5
举报

Seamless lower third loop of an electronic display measuring heart beat and rate. Top portion is black and very text-friendly. HD.

视  频 ID：  1654438
版      权：  Kenneth Keifer
视频长度：  0:08
横纵比率：  16:9
所属分类：  科学 医疗 
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