機器
activity
asphalt
construction
damaged
destruction
dirty
dump
dump truck
engineering
equipment
heavy
highway
industrial
industry
layer
load
loading
lorry
machinery
maintenance
milling
old
part
pavement
paving
power
process
reconstruction
recycling
rehabilitation
removal
removing
renovation
repair
road
roadway
street
surface
technology
tool
transport
transportation
truck
vehicle
work
worker
working