機器
automated
automatic
background
blackboard
board
box
business
button
cables
center
circuit
closeup
communications
component
connect
connection
control
distribution
electric
electrical
electricity
electronics
energy
equipment
fuse
industry
light
line
link
manufacturing
metal
order
panel
part
plank
plug
power
releases
row
safety
security
station
statusapproved
supply
switch
system
technical
technology
voltage
wire