cored solder wire

• 钎焊丝,空心焊丝

cored solder wire的用法和样例：

例句

1. The tin wire was spooled after it was used.
   焊丝用完后已卷绕起来了。
2. Drums connected to form continuous supply of welding wire.
   鼓形圆筒的连接方式形成连续的焊丝供给。