機器
activity
architecture
bucket
build
building
bulldozer
construction
dig
dirt
earth
earthmover
engineering
equipment
excavation
excavator
ground
heavy
hydraulic
industrial
industry
iron
loader
machinery
metal
mover
power
rail
railroad
railway
road
sand
scoop
shovel
site
sky
steel
technology
track
tractor
train
transport
transportation
travel
vehicle
wheel
work
yellow