機器
backhoe
bucket
building
bulldozer
construction site
crawler
dig
digging
earth
earthmover
earthwork
eathmoving
equipment
excavation
excavator
field
gravel
hydraulic
hydraulics
industrial
industry
loader
loading
machinery
mining
mover
outdoors
roadwork
sand
sand quarry
scoop
shovel
soil
technology
tracktype
tractor
vehicle
work
working
works
yellow