機器
ability
aircraft
airplane
american
army
assault
attack
black
blue
chopper
danger
defense
display
engine
engineering
escape
exhibition
fighters
fighting
flight
fly
force
hawk
helicopter
honor
industry
international
landing
military
modern
motor
navy
pilot
power
propeller
pursuit
rescue
rotor
safety
show
silhouette
technology
transport
transportation
uh60
vehicle
war
warfare