英文關鍵字
action
activity
arm
backhoe
bucket
build
building
bulldozer
closeup
construction
dig
digger
dozer
driving
earthmover
equipment
excavation
excavator
heavy
hydraulic
icon
industrial
industry
ladle
loader
machine
machinery
mining
motion
pit
power
produce
sand
scoop
shovel
site
sky
soil
tipper
tractor
transport
truck
unloading
vehicle
wheel
work
worksite
yellow