electric impact drill

美 [ɪˈlektrɪk ˈɪmpækt drɪl]英 [ɪˈlektrɪk ˈɪmpækt drɪl]
  • 网络冲击电钻
electric impact drillelectric impact drill
  1. Development of the electric impact drill for the testing of the strength of concrete in structures

    结构砼恒压恒速冲击钻测强仪的改进研制