機器
backhoe
bucket
build
bulldozer
construct
construction
contractor
development
diesel
dig
digger
dirt
doze
earth
equipment
excavate
excavating
excavation
excavator
ground
heavy
hoe
hydraulic
industrial
industry
lift
loader
machinery
mover
moving
mud
power
rural
scoop
shovel
site
soil
track
vehicle
work
yellow