英文關鍵字
actions
activity
asphalt
asphalting
bitumen
black
blacktop
blacktopping
construction
coveralls
crawler
diesel
drive
equipment
finisher
heavy
hopper
industrial
industry
machine
machinery
metal
objects
pave
pavement
paver
paving
renewal
repair
repairs
road
roll
spreading
street
tar
transportation
truck
unit
vibration
vibrator
work
worker