機器
activity
asphalt
asphalting
blacktopping
bucket
build
building
bulldozer
compactor
construction
digger
equipment
excavation
excavator
gravel
heavy
highway
hydraulic
industrial
industry
lane
loader
machinery
maintenance
occupation
pave
pavement
paving
pressure
renewal
repair
road
roadwork
roller
shovel
site
soil
steam
steamroller
street
tractor
transportation
truck
vehicle
vibration
wheel
work
worker