機器
action
activity
backhoe
blade
bucket
build
bulldozer
construction
development
dig
digger
earth
earthmover
eathmoving
equipment
excavate
excavation
excavator
ground
heavy
hydraulic
industrial
industry
large
loader
machinery
mine
mover
outdoors
pit
power
quarry
sand
scoop
shovel
site
soil
tractor
vehicle
work