英文關鍵字
nichrome
wire
electricity
filament
burn
current
glow
tungsten
heating
energy
power
thread
voltage
resistance
amp
strength
ohm
electric
light
heat
incandescent
watt
ignition
electrons
red
hot
effect
process
line
luminescence
amperage
background
connected
coil
illuminated
real
luminance
pulsation
closeup