機器
activity
area
backhoe
blade
building site
bulldozer
busy
civil engineering
contractor
crawler
development
earth mover
earthmover
flatting
ground
heap
industrial
industry
landscape
level
machinery
manage
mechanical
mechanism
mechanization
metal
operator
outdoor
piled
power
powerful
process
project
push
scene
site
soil
strength
technology
tool
track
tracked
transform
vehicle
work
work in progress
workplace
yellow
zone