機器
aerial
air
airborne
aircraft
airline
assistance
aviation
blade
cartoon
chopper
color
copter
emergency
engine
fast
flight
fly
flying
green
helicopter
help
hover
icon
illustration
industry
isolated
medical
object
pilot
plane
power
propeller
rescue
rotor
save
search
service
sky
speed
technology
traffic
transport
transportation
travel
trip
vehicle
working