灯丝丝细 filament

灯丝/丝极 filament

灯丝断丝 filament burn-out

灯丝断丝报警 alarm for burnout of filaments

灯丝电路保险丝 filament fuse

灯丝电路熔丝 filament fuse

灯丝/细丝 Filament/heater/hot wire