機器
aerial
aerospace
air
aircraft
airplane
aviation
blade
blue
chrome
closeup
complex
cylinder
details
engine
engineering
fly
front
frontal
fuel
gears
generation
green
hood
industry
machinery
metal
motor
old
open
part
pistons
plane
powers
prepare
propeller
red
repair
ring
rotate
rotor
spin
swap
transport
transportation
tune
type
ultralight
vehicle
wrench