英文關鍵字
actions
amperage
arm
automatic
automation
blue
board
box
breaker
business
button
cabinet
call
center
choice
circular
clicking
clicks
closeup
color
connection
console
control
cubicle
current
device
distribution
electric
electrical
electrician
electricity
electronic
energetics
energy
equipment
factory
gray
green
industrial
industry
instrument
kilowatts
lever
light
machine
machinery
manufacturing
metal
off
panel
plant
power
pressing
pushing
red
room
safety
starter
switch
switchgear
system
technical
technology
tilts
voltage