短语词组短语spiral cutter -head [矿业]螺旋形挖掘头rolling cutter core head 轧机cutter r head 刀盘体;机械录音头cutter &head cutting circle diameter 刀轴切削圆直径cutter head dredger 绞式挖泥船feedback cutter head [电子]反馈式刻纹头tangential cutter head 切向进刀架;切向 返回 cutter head