機器
assembling
building
bulldozer
concrete
constructing
construction
crushed
damage
development
dig
digger
dirt
duty
earth
equipment
excavate
excavation
excavator
field
foundation
foundation pit
front
ground
heavy
hydraulic
industrial
industry
infrastructure
installation
installing
job
ladle
large
loader
machinery
mine
move
mover
occupation
renovation
sand
scoop
shovel
site
sky
soil
vehicle
work