NC flame cutting: CNC flame cutting is numerical control machine tool use gas with oxygen or gasoline in metal materials with oxygen cut a way to cut.
数控火焰切割：数控火焰切割是数控机床利用燃气配氧气或者汽油配氧气进行金属材料切割的一种切割方式。
This paper analyzes the structure and characteristic of mini spiral face impeller, and introduces a new method by the use of milling machine and special cutting tool.
分析了微型螺旋面叶轮的结构和工艺特点，介绍了应用高精度万能铣床和特殊刀具加工该种叶轮的方法。
To reproduce or increase the size of a hole by use of a drill, auger or rotary cutting tool.
用钻头，螺钻或旋转切割机在加工或增大孔的大小。
To reproduce or increase the size of a hole by use of a drill, auger or rotary cutting tool.
用钻头，螺钻或旋转切割机在加工或增大孔的大小。
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