英文關鍵字
amount
cadence
closeup
consume
consumption
counter
current
device
dial
digital
display
domestic
electric
electrical
electricity
energy
home
household
indicator
industrial
industry
joules
kilowatt
kilowatthour
kwh
measure
measured
measurement
measuring
meter
metering
monitor
number
numbers
power
quantity
rate
residential
supply
technology
time
unit
usage
utilities
utility
value
voltage
watt
showing
hours
typical
transparent
plastic
case