機器
action
activity
bucket
build
building
bulldozer
construction
crawler
development
dig
digger
dirt
earth
earthmover
earthwork
ecology
equipment
excavate
excavating
excavation
excavator
field
gravel
ground
heavy
hydraulic
industrial
industry
land
loader
loading
machinery
mine
mining
mover
outdoor
pit
power
quarry
sand
sandpit
scoop
shovel
site
soil
technology
transport
vehicle
work