機器
above
aerial
cliff
construction
copter
dangerous
dirt
dron
earth
environment
equipment
excavating
excavation
exploitation
extracted
extraction
field
fly
geological
geology
gravel
heavy
hill
industrial
industry
italia
landscape
material
mine
mineral
natural
nature
outdoor
outside
place
quarrying
resource
road
rock
sand
stone
summer
technology
tractor
transportation
truck
vehicle
view
work