nitrogen arc

例句：

1. 1. The process ofcreating a nitrogen arc is crucial forthe success of the welding operation.
   创造氮弧的过程对于焊接操作的成功至关重要。
2. 2.During the nitrogen arc weldingprocess, the heat generated by thearc melts and fuses the materialsbeing joined together.
   在氮弧焊接过程中，由弧产生的热量熔化和融合了要连接的材料。
3. 3. The use of nitrogenarc welding technology has significantly improvedthe efficiency and quality of metal joining operations.
   使用氮弧焊接技术显著提高了金属连接作业的效率和质量。