dot welding

• 填补焊,点焊

dot welding的用法和样例：

例句

1. Sanded samples have higher welding quality.
   点焊接头的金相组织主要由等轴晶构成。
2. Spot welding technology has been USed widely in various industry fie lds.
   点焊在工业领域中应用的非常广泛。