英文關鍵字
alkaline
roll
battery
3d
green
modern
polarity
power
recharge
rechargeable
recycling
render
supply
symbol
technology
volt
industry
fuel
energy
accumulator
background
cell
charge
concept
movement
storage
many
metal
electric
ecology
equipment
electricity
closeup
recycle
electrical
lithium
dof
bulk
batterypowered
electronics
aa
environment
eco
cells