To bore(a shaft) with a trepan.
这台钻机能钻透岩石。
Cut a hole with a trepan; in surgery.
用钻孔机钻一个孔；在外科中。
Conclusion in the treatment of cervical trauma and cervical disc herniation, the procedure of anterior decompression and fusion using ZDS trepan can be simpler, safer and more effective.
结论应用ZDS旋转推进式环锯行颈椎前路减压融合术治疗颈椎外伤、颈椎间盘突出症可获得较好的疗效，且操作简单、安全。
Conclusion in the treatment of cervical trauma and cervical disc herniation, the procedure of anterior decompression and fusion using ZDS trepan can be simpler, safer and more effective.
结论应用ZDS旋转推进式环锯行颈椎前路减压融合术治疗颈椎外伤、颈椎间盘突出症可获得较好的疗效，且操作简单、安全。
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