英文關鍵字
asphalt
asphalting
background
black
building
city
compactor
day
equipment
heavy
industrial
instrument
job
large
laying
leveling
machine
machinery
mix
new
outdoor
outside
pave
paved
pavement
paver
paving
people
pressing
pressure
process
renovation
repair
road
roller
rolling
rolls
service
steamroller
street
surface
tool
under
work
worker
workers
working