英文關鍵字
animation
auto
automobile
barrel
black
bottle
can
canister
car
container
design
diesel
drop
element
engine
flammable
fuel
gallon
gasoline
grease
handle
icon
illustration
industry
isolated
liquid
lube
lubricant
lubrication
machine
machinery
maintenance
mechanic
motion
motor
object
oil
petrol
repair
service
sign
simple
symbol
tank
technology
transport
transportation
vehicle
wheel