英文關鍵字
alkaline
alternative
amperage
appliance
batteries
cable
cadmium
car
charge
charger
closeup
connection
electric
electrical
electricity
electronics
energy
engineering
environment
equipment
fuel
generation
heap
industry
ion
line
lithium
lithiumion
metal
minus
mobile
mode
objects
polarity
power
rechargeable
recycling
robots
row
sign
store
supply
technology
transport
transportation
volts
wattage
watts