for drill center的意思|示意

钻孔定中心冲头 ... 楔尖式钻孔定向器 whi tock; whipstock 钻孔定中心冲头 centering drill; for drill center 定心 [机械工程] mark with the centre; centring; alignment ...

释义钻孔定中心冲头 钻孔的英文医药专业词条翻译 ... bore 释义：钻(孔),镗,内径,钻孔器,内径,锥,挖,掘,孔,洞 for drill center 释义：钻孔定中心冲头 bone drill and traction instruments set 释义：骨钻孔及牵引器械包 ...