機器
activity
backhoe
bucket
bulldozer
construction
construction industry
construction site
development
dig
digger
digging
earth
earth excavation
engineering
environment
equipment
excavating
excavation
excavator
ground
heavy
hill
hydraulic
industrial
industry
landscape
loader
machinery
mountain
mountains
nature
outdoors
power
road
rock
sand
scoop
shovel
soil
stone
tractor
transport
transportation
truck
vehicle
work
working
yellow