1)blunt drill,鈍鉆2)blunt bit,鈍鉆頭3)dulled bit,磨鈍鉆頭4)a blunt-tipped drill,椎弓根鈍頭鉆5)bit-tooth dullness,鉆頭牙齒磨鈍度6)drill and countersink combination,尖角鈍角兩用鉆
用法和例句
Objective To design a blunt-tipped drill of pedicle screw placement,in order to decrease the accident of pedicle violations during pedicle screw placement.
