機器
activity
and
angle
architecture
bucket
building
buildings
built
concrete
construction
cylinder
development
dig
digger
ditch
duck
earth
emergence
equipment
excavate
excavator
granite
gravel
growth
heavy
industry
level
machinery
mechanical
mode
move
mover
occupation
of
over
planning
rays
road
rock
rubber
scoop
shovel
site
sized
stockpile
structure
surface
transport
transportation
viewpoint
wide angle
working
yellow