機器
big
blue
bucket
build
bulldozer
chains
construct
construction
contractor
development
dig
digger
dirt
dredger
duty
earth
earthmover
equipment
excavate
excavation
excavator
gravel
ground
heavy
hydraulic
industrial
industry
large
loader
machinery
mechanical
mine
mover
orange
outdoor
perspective
power
quarry
scoop
shovel
site
sky
soil
tractor
transport
transportation
vehicle
work
yellow