fluted drill

英 [ˈfluːtɪd drɪl] 美 [ˈfluːtɪd drɪl]

网络  直槽扩孔钻

机械



双语例句

  1. Double-Edge Gun Drills A Study Of Four& fluted Twist Drill nie guo-hu
    双刃枪铰四刃钻头的研究