lead spreader

例句：

1. 1. The lead spreader was used to solder the wires together.
   铅扩散器用于将电线焊接在一起。
2. 2.The lead spreader was used to clean up the spilled ink.
   铅扩散器被用来清理溢出的墨水。
3. 3.The lead spreader was used to solder the metal parts together.
   铅扩散器被用来将金属部件焊接在一起。