英文關鍵字
road
construction
site
work
industry
equipment
machinery
industrial
timelapse
time
lapse
machine
excavator
engineering
heavy
excavation
bulldozer
worker
digger
vehicle
tram
metro
traffic
rails
comfort
system
rcs
intersection
crossroad
mixer
crane
quarry
roadworks
project
reinforced
factory
boiler
drill
dig
chisel
metal
dozer
urban
pour
crusher
break
patching
scaffolding
estate