0:00/0:15
倍速
  • x2
  • x1
  • x0.5
举报

Perfluorobutanoic acid rotating 3D model of perfluoroalkyl carboxylic acid under a microscope seamless looped video molecular structure with selective focus

视  频 ID：  1107763953
版      权：  SergeiShimanovich
视频长度：  0:15
横纵比率：  1.90:1
所属分类：  科学 医疗 
商业用途
如何选择
授权授权书发票合同问题