arc welding equipment

例句：

1. 1. The engineerused an arc welding machineto repair the damaged part of the bridge.
   工程师使用一台弧焊机来修理桥梁受损的部分。
2. 2. The construction site required a largeamount of arc welding equipmentfor the project.
   施工现场需要大量的弧焊设备来完成这个项目。
3. 3. The arc weldingequipment was carefully maintained to ensure its reliabilityand safety.
   为了确保设备的可靠性和安全性，对弧焊设备进行了仔细的维护。