機器
impalement
activity
base
building site
civil engineering
compact
compacting
compactor
compression
construction
dig
dumper
earth
earthwork
excavator
fill
flatten
flattener
ground
impale
industrial
industry
landscape
leveling
machinery
mechanical
passing over
pressure
roller
sand
sandy
site
soil
spike
steamroller
surface
team
teamwork
terrain
tipper
trace
track
trail
truck
vibrate
vibration
work
yellow
zone