nerve-broach 拔髓针,髓针...key way pull broach 开键槽拉力...spline broach 方栓槽拉刀...square broach 方拉刀...watchmakers' broach 根管扩大针...root-canal broach 根管针...involute spline broach 渐开线栓槽拉刀...broach n.烧肉叉,凿子,钻头vt.用...burnishing broach 擦光拉刀...spiral broach 蜗旋拉刀...nerve broach 拔髓针...rectangular broach 长方形拉刀...round hole broach 圆孔拉刀...serration broach 锯齿拉刀...external broach 外拉刀...continuous broach 连续拉刀...broach sharpener 拉刀磨锐机...Donaldson's broach 唐纳逊氏拔髓针...internal broach 内拉刀...smooth broach 平滑髓针...
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