機器
alternating
background
capacitance
capacitor
closeup
coil
collector
copper
damaged
disassembled
electric
electrical
electricity
electromagnet
electromagnetism
energy
generator
induction
inductor
industrial
iron
isolated
magnet
magnetic
magnetism
metal
motor
object
one
open
pantograph
phase
pole
power
rotate
rotation
rotor
rotor closeup
shaft
single
spare
spare part
starter
stator
technology
white
winding
wire
wiring