機器
agricultural
agriculture
asphalt
auto
automobile
automotive
big
black
business
car
cargo
circle
computer
delivery
design
detail
diesel
dirty
drive
engine
equipment
frame
freight
heavy
highway
horizontal
industrial
industry
large
load
machinery
metal
mode
modern
motor
new
objects
outdoor
power
red
tire
tractor
transport
transportation
truck
tyre
vehicle
wheel