arcing contacts

例句：

1. 1. The engineer used a specialtool to make the arcing contactsin the machine work smoothly.
   工程师使用特殊的工具使机器中的弧焊接触点工作顺畅。
2. 2. During the welding process,the arcing contacts are crucial forensuring the quality of the weld.
   在焊接过程中，弧焊接触点对于确保焊缝质量至关重要。
3. 3. The engineer carefully adjusted thearcing contacts to avoid any potentialissues during the welding operation.
   工程师仔细调整了弧焊接触点，以避免焊接操作中可能出现的问题。