英文關鍵字
automatic
background
board
box
breaker
button
cable
cables
center
circuit
closeup
component
connect
connection
contactors
control
danger
distribution
electric
electrical
electrician
electricity
electronics
energy
equipment
fuse
fusebox
industrial
industry
installation
light
line
machine
macro
metal
meter
panel
panels
plug
power
row
safety
switch
switchboard
system
technology
voltage
wire
worn