英文關鍵字
220
appliances
button
cable
care
charger
close
closeup
computer
connect
connection
connector
contact
control
current
device
devices
economy
electric
electrical
electricity
electronic
electronics
energy
equipment
filter
finger
focus
hand
home
includes
light
man
network
office
pin
portable
power
protection
protector
red
selective
socket
sockets
source
surge
switch
technology
theme
transfer
turns
volt
wire
wires