機器
above
activity
backhoe
base
below
blade
bucket
building site
busy
civil engineering
compact
compacting
compaction
construction
control
digger
down
dredger
dry
earth mover
earthworks
excavator
flatting
ground
hydraulic
layer
level
loader
manage
mechanical
mechanization
mover
process
push
sand
scene
site
soil
substrate
track
tractor
transform
vehicle
view
work
worker
workplace
yellow
zone