英文關鍵字
auto
automobile
car
compression
copper
cylinder
electric
electrical
electricity
electrode
engine
equipment
fourstroke
fuel
gasoline
high
ice
igniting
ignition
injection
inside
insulator
iridium
isolated
metal
mixture
motor
nickel
petrol
platinum
plug
porcelain
process
spark
sparkplug
steel
thread
twostroke
vehicle
voltage
work