welding operator的用法和樣例：
例句
- Appropriate welding goggles or welders face shields must be worn when welding or cutting operations are taking place.
進行焊接或切割操作時，必須戴上恰當的焊接護目鏡或焊工面罩。 - For electric arc welding in a space with conductive walls or floors, the welder should be provided with an insulating mat or cradle to avoid bodily contact with the walls.
在安裝有傳導性牆壁或地板的空間進行電弧焊接時，應向焊工提供絕緣墊或支架以避免人體接觸到牆壁。
