機器
aged
binocular
coin
discovery
distance
distant
equipment
explora
exploration
explorer
eye
front
future
glass
illustration
instrument
landscape
lens
locate
look
metal
metallic
military
object
old
optic
optical
outdoors
reflection
robot
robotics
rust
scenic
search
see
sightseeing
space
spy
surveillance
symbol
telescope
tourism
travel
vacation
view
viewer
viewing
vision
watching
zoom