英文關鍵字
aircraft
airplane
airport
army
background
blip
circle
computer
control
defense
detect
detection
digital
display
equipment
flying
futuristic
graphic
green
looping
map
matte
military
monitor
navigation
pattern
protection
radar
raster
safety
satellite
scan
scanner
scanning
screen
seamless
search
sign
sonar
submarine
symbol
system
target
technology
traffic
transportation
vision
visual
war
weapon