Filler arc welding

例句：

1. 1. This type of filler arc welding is widely used in the construction industry.
   这种填充弧焊在建筑业中广泛使用。
2. 2. The engineers were able to successfully complete the filler arc welding process.
   工程师们成功地完成了填充弧焊过程。
3. 3. The filler arc welding technique requires precise control over the welding parameters.
   填充弧焊技术需要精确控制焊接参数。