機器
adjusting
amperage
auto
automatic
automobile
background
black
box
breaking
car
closeup
component
computer
connection
contactor
control
copper
device
electric
electrical
electrically
electricity
electro
electromagnetic
electronic
energy
equipment
industrial
industry
isolated
macro
manufacturing
object
operated
pin
plug
power
protection
relay
remote
repair
service
supply
switch
technology
vehicle
voltage
white
wire