1) blunt drill
钝钻
2) blunt bit
钝钻头
3) dulled bit
磨钝钻头
4) a blunt-tipped drill
椎弓根钝头钻
1.
Objective To design a blunt-tipped drill of pedicle screw placement,in order to decrease the accident of pedicle violations during pedicle screw placement.
目的设计一种新型椎弓根钝头钻,以期减少椎弓根螺钉植入的穿破率。
5) bit-tooth dullness
钻头牙齿磨钝度
6) drill and countersink combination
尖角钝角两用钻
补充资料：磨钝
1.磨砺顽钝。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条