welding source

例句：

1. 1. The welding source is crucial for the qualityof the welded joint.
   焊接源对于焊缝的质量至关重要。
2. 2. The weldingsource is used to control the flow ofmolten metal during welding.
   焊接源用于控制焊接过程中熔融金属的流动。
3. 3. The welding source isa critical component in the production process ofmany industrial products.
   焊接源是许多工业产品生产过程中的一个关键组件。