焊工,焊機
Welder \Weld"er\, n.
One who welds, or unites pieces of iron, etc., by welding.
Welder \Weld"er\, n.
1. One who welds, or wields. [Obs.]
2. A manager; an actual occupant. [Ireland. Obs.] ``The
welder . . . who . . . lives miserably.'' --Swift.
welder
n : joins pieces of metal by welding them together