英文關鍵字
activity
architecture
arranging
base
building
civil
compact
compacting
compactor
construction
engineering
flatten
flattener
foundation
ground
heavy
hydraulic
industrial
industry
landscape
leveling
machine
machinery
make
mechanical
mechanization
over
passing
pressure
progress
roll
roller
sand
site
slow
soil
spike
strong
structure
surface
technology
terrain
vehicle
vibrate
vibration
wheel
work
worker
workplace
yellow
zone