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Heartbeat monitor EKG line monitor shows heartthrob Seamlessly loop electrocardiogram medical screen with heart rhythm in red on black background. ECG machine. Conceptual heart rate monitor

视  频 ID：  1093713813
版      权：  rawan
视频长度：  0:18
横纵比率：  16:9
所属分类：  科学 医疗 
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