機器
activity
building
business
cargo
carry
construct
construction
construction site
delivery
dirt
dump
dump truck
dumper
dumping
dust
earth
equipment
excavation
gravel
ground
heap
heavy
hydraulic
industrial
industry
land
large
load
lorry
machinery
road
road construction
rock
sand
site
soil
stone
tipper
transport
transportation
truck
trucking
unload
unloading
vehicle
work