英文關鍵字
electricity
nichrome
filament
current
wire
glow
tungsten
heating
energy
power
thread
voltage
resistance
amp
strength
spiral
electric
light
heat
incandescent
watt
red
hot
macro
metal
closeup
warm
science
heated
iron
yellow
pulsation
temperature
handmade
coil
burn
helix
lit
economy
stove
shine
process