機器
action
backhoe
blade
blue sky
bucket
building
bulldozer
construction
construction site
dig
digging
earth
earthmover
eathmoving works
equipment
excavation
excavator
gravel
hydraulic
industry
machinery
mining
mover
outdoors
road building
sand
sand quarry
scoop
shovel
soil
tractor
unloading
vehicle
wheel loader
work
working
yellow