arc welder
arc welder — noun
1. a tool that joins pieces of metal by passing a strong electric current between t
a tool that joins pieces of metal by passing a strong electric current between them, making enough heat to melt the edges so they stick together.
Christopher switched on the arc welder and a bright blue flash lit up the workshop.
subject + switch on + arc welder
The arc welder hummed loudly as the two steel beams slowly fused into one.
machine as subject of the action
Always wear a dark mask when you use an arc welder, or the light will hurt your eyes.
Meera bought a small arc welder to fix the broken gate in her back garden.
The old arc welder in the garage no longer worked, so the repair shop ordered a new one.
- welding machine
broader term for any machine that welds, not only the electric-arc type
- welder
short form; can mean either the machine or the person, so less precise
用法筆記
Refers to the equipment itself. Distinguish from sense 2, which is the worker who operates it; context (a person doing a job vs. a tool being switched on) tells them apart.
2. a worker whose job is to join metal parts together using a machine that melts th
a worker whose job is to join metal parts together using a machine that melts the metal with a strong electric current.
Gabriela trained for two years before she became a skilled arc welder at the shipyard.
person + became + arc welder (occupation)
The factory hired three arc welders to build the steel frames for the new bridge.
hire + arc welders (plural occupation)
As an arc welder, Ilan spends his days joining heavy steel pipes in the open air.
Good arc welders earn high wages because their work keeps bridges and buildings safe.
The arc welder lowered her mask and began joining the two metal plates.
- welder
general term for the trade; an arc welder specifically uses electric-arc equipment
- metalworker
broader trade covering many ways of shaping metal, not only welding
用法筆記
Subject is always a person performing the trade; often paired with a workplace (shipyard, factory) or a verb of employment (hire, train). Distinguish from sense 1, the machine.