钨丝
wūsī
钨丝 — wūsī
- tungsten filament; thin wire made of tungsten (used in light bulbs and heating elements)
白炽灯的钨丝在通电后会发热发光。 báichìdēng de wūsī zài tōngdiàn hòuhuì fārè fāguāng — The tungsten filament of an incandescent lamp heats up and emits light when electricity passes through it.