機器
activity
area
big
border
building site
change
civil engineering
concept
construction
county
crane
crowd
environment
equipment
erector
fence
ground
huge
industrial
industry
infrastructure
land
landscape
machinery
meadow
mechanization
obstacle
outdoor
process
protection
safety
scene
security
site
soil
space
stop
team
teamwork
technology
telescopic
through
transform
vehicle
view
wire
work
work in progress
workplace