preheated electric arc welding

例句：

1. 1.The preheated electric arc welding process is crucial for the successof the assembly line.
   预热电弧焊接过程对于装配线的成败至关重要。
2. 2. During the preheated electric arc welding, the operator must be careful to avoidany potential hazards.
   在预热电弧焊接过程中，操作员必须小心，以避免任何潜在的危险。
3. 3. The preheated electricarc welding technique has beenshown to significantly improve the quality and durabilityof the joints.
   预热电弧焊接技术已被证明可以显著提高接头的质量与耐用性。