英文關鍵字
accessory
accumulator
adapter
alkaline
battery
black
cell
charge
charger
closeup
design
device
electric
electrical
electricity
electronic
energy
environment
environmental
equipment
error
generation
group
lithium
metal
modern
object
plastic
plug
power
recharge
rechargeable
recycling
save
science
set
supply
symbol
technology
voltage
watt