broachn.烧叉肉；叉子；凿子；拉刀n.胸针（=brooch）vt.钻孔开启；凿大；初次提起；开始商讨vi.（船）突然横转broach support拉刀支架broach a topic提出一个题目broached groove拉槽broach a secret泄漏秘密broaching press拉削压力机broachingmachinen.拉床broach sharpener拉刀磨床broaching cutter拉削刀具broaching fixture拉削夹具,铰孔夹具,扩孔夹具broaching machire拉床