gas tungsten arc welding-pulsed arc

例句：

1. 1.The gas tungsten arc welding equipment is very efficient in cutting metal.
   这种气体钨极电弧焊接设备在切割金属方面非常高效。
2. 2.The gas tungsten arc welding process is widely used in the construction industry.
   气体钨极电弧焊接工艺广泛应用于建筑业。
3. 3.The gas tungsten arc welding process requires special training for operators to ensure safe and effective welding.
   气体钨极电弧焊接工艺要求操作人员接受特殊培训，以确保焊接安全有效。