機器
above
activity
aerial
big
bucket
build
bulldozer
christmas
construct
construction
contractor
dirt
dump
earth
equator
equipment
escalator
excavating
excavation
excavator
gravel
green
grit
heavy
industrial
industry
landscape
loader
mover
operator
pinetree
plant
power
road
rock
sand
shovel
site
sky
tool
top
track
tractor
truck
vehicle
view
work
works
yellow