機器
action
activity
asphalting
blue
building
business
clouds
construct
construction
dirt
dump
dumper
dumping
dumptruck
earth
earthworks
ecology
equipment
excavation
gravel
ground
heavy
industrial
industry
interstate
land
lorry
machinery
moving
pavement
paving
pouring
road
roadworks
sand
site
sky
soil
tip
tipper
transport
transportation
truck
trucking
unload
unloading
vehicle
work
works