英文關鍵字
amount
amp
amperage
ampere
appliance
bill
circle
consumption
cost
count
counter
current
dangerous
data
disc
display
economy
efficient
electric
electrical
electricity
energetic
energy
gage
gauge
household
industrial
kilowatt
kwh
measure
monitor
number
ohms
panel
power
price
rate
resouces
retro
save
unit
usage