英文關鍵字
activity
asphalt
asphalting
black
building
car
city
compactor
compression
consolidation
construction
covering
equipment
heavy
highway
industrial
industry
job
landscape
laying
machine
machinery
mechanism
pavement
paver
paving
pressure
repair
repairing
repairs
rink
road
roadwork
roller
skating
steam
street
summer
transport
transportation
truck
urban
vehicle
vibration
work
worker
yellow