機器
action
activity
architecture
backhoe
blade
bucket
build
building
bulldozer
construction
development
dig
digger
earth
equipment
excavation
excavator
gravel
ground
heavy
hydraulic
industrial
industry
large
loader
loading
machinery
metal
moving
pit
power
quarry
road
sand
scoop
site
soil
tractor
transport
transportation
truck
unloading
vehicle
work