英文關鍵字
automated
automatic
automation
board
box
cable
circuit
close
closeup
communications
component
connected
connection
connector
connectors
control
current
device
electric
electrical
electricity
electronic
energy
engineering
equipment
hardware
hub
industrial
industry
installation
machine
network
panel
plug
power
protection
relay
relays
station
supply
switch
system
technical
technology
up
voltage
wire
wired
wires