英文關鍵字
industry
panel
control
electrical
electricity
technical
voltage
wire
circuit
connection
electronics
energy
manufacturing
electric
distribution
center
automatic
board
system
switch
power
technology
cabinet
factory
industrial
fuse
machine
equipment
component
automated
production
order
blackboard
connect
consumption
closeup
bar
metal
alternating
part
cables
protections
systems
light
automation
plant
box
current
kilowatts
safety