機器
aggregate
break
building
bulldozer
business
construction
conveyor
crushed
crusher
development
dig
digger
digging
dirt
earth
environment
equipment
excavation
excavator
extraction
factory
gravel
heavy
hydraulic
industrial
industry
landscape
large
line
loader
loading
machinery
mine
outdoor
outdoors
pit
plant
power
production
quarry
resource
rock
sand
scoop
site
stone
technology
vehicle
view
work