英文關鍵字
adventure
aerial
anemometer
antenna
boat
button
communication
compass
course
deck
device
direction
equipment
fishing
geography
gyrocompass
locator
marine
maritime
military
monitoring
movement
nautical
naval
navigate
navigation
navigator
navy
orientation
outdoors
pointer
radar
rotation
sail
sailor
satellite
sea
ship
sonar
system
top
travel
upper
vane
vessel
weapon
wheel
wind