機器
activity
angle
blue
building
clear
cloud
construction
crane
cylinder
development
dig
digging
dirt
earth
equipment
excavation
excavator
gear
gravel
heap
heavy
hill
horizontal
industry
land
machinery
metal
mining
mover
object
occupation
platform
power
quarry
rock
rubble
sand
scoop
single
site
sky
track
tractor
transportation
vehicle
view
work
working
yellow