arc welding generator with self-excitation

例句：

1. 1.The arc welding generator isused to produce high-quality welds in metal parts.
   弧焊发电机用于在金属部件中产生高质量的焊缝。
2. 2. The engineerneeds to ensure that the arc welding generator is properly installed and maintained.
   工程师需要确保弧焊发电机正确安装和维护。
3. 3.The arc welding generator isa crucial tool for welding operations, providing power and heat for the process.
   弧焊发电机是焊接操作的关键工具，为过程提供动力和热量。