preweld

例句：

1. 1.The welding process is crucial for the integrity of the joint.
   焊接过程对于接头的完整性至关重要。
2. 2. Before welding, it's important to ensure proper preparation and cleaning.
   在焊接之前，确保适当的准备和清洁是很重要的。
3. 3. The preweld inspection ensures that the joint will hold together properly after welding.
   预焊接检查确保焊接后接头能够正确结合。