0:00/0:26
倍速
  • x2
  • x1
  • x0.5
举报

Robot drill makes hole in hard rock for setting explosives in ore mine. Professional machinery equipment helps to get natural resources closeup

视  频 ID：  3424797065
版      权：  Umx
视频长度：  0:26
横纵比率：  16:9
所属分类：  科技 工业 
商业用途
如何选择
授权授权书发票合同问题