機器
agriculture
backhoe
bucket
build
builder
built structure
bulldozer
business
construction
construction site
contractor
development
dig
digger
dirt
earth
earth mover
earthmover
earthwork
equipment
excavate
excavating
excavation
excavator
foundation
ground
heavy
hydraulic
industrial
industry
irrigation
land
loader
loading
machinery
mover
outdoor
pit
road
scoop
shovel
site
soil
technology
tractor
transport
truck
vehicle
work