英文關鍵字
asphalt
asphalting
bitum
bitumen
building
compactor
construction
distribute
equipment
fixing
heavy
highway
industrial
industry
infrastructure
inventory
machine
machinery
maintenance
making
manufacturing
mechanical
mending
motorway
new
pavement
paver
paving
placing
pressure
production
repair
repairing
road
roadmen
roadway
roadwork
roller
site
spreading
steam
technology
transportation
truck
vehicle
work
workers