英文關鍵字
activity
asphalt
asphalting
bitumen
black
blacktop
blacktopping
construction
equipment
finisher
heavy
highway
hopper
industry
laborer
lane
loader
machine
machinery
metal
objects
pave
pavement
paver
paving
pressure
repair
repairs
road
roller
screed
steamroller
street
tar
tractor
transportation
truck
unit
vibrator
vibroroller
work