tungsten arc melting

例句：

1. 1.Tungsten arc welding is a process that uses electric current to heat and melt metal together.
   钨弧焊是一种使用电流加热和熔化金属的过程。
2. 2.In the manufacturing industry, tungsten arc welding is widely used for connecting pipes and fittings.
   在制造业中，钨弧焊被广泛用于连接管道和配件。
3. 3.The tungsten arc welding machine is equipped with a high-power generator and can produce high-quality welds.
   钨弧焊机配备了大功率发电机，可以产生高质量的焊缝。