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Man scientist wearing a lab coat white gloves and protective glasses is dripping liquid from a pipette into a test tube with a green plant inside vertical close up view. Science and medicine

视  频 ID：  3623706915
版      权：  Volha_R
视频长度：  0:15
横纵比率：  0.56:1
所属分类：  科学 医疗 
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