英文關鍵字
ammeter
amperage
ampere
arrow
button
circle
clock
close
component
consumption
control
counter
dashboard
dial
electrical
electricity
electronics
energy
equipment
fashioned
fuse
gauge
high
hour
instrument
lock
mantissa
measuring
meter
needle
obsolete
ohm
old
panel
people
pointer
power
real
retro
scale
service
sign
stick
styled
supply
switch
symbol
technology
time
transformer
vintage
voltage
voltmeter