英文關鍵字
220
accumulator
avg
background
backup
battery
black
booting
box
business
center
circuit
closeup
computer
corporate
current
data
digital
electric
electrical
electricity
emergency
energy
equipment
factory
hardware
high
industrial
industry
interior
kwh
power
room
security
server
service
stability
standby
storage
supply
support
system
technology
transformer
uninterrupted
uninterruptible
ups
volt
voltage