英文關鍵字
activity
arm
bucket
building
bulldozer
camion
car
caterpillar
closeup
construction
crane
dig
digger
disposal
earth
earthmover
equipment
excavation
excavator
field
ground
heavy
hydraulic
icon
industrial
industry
ladle
land
loader
machine
machinery
mining
power
produce
scoop
shovel
site
sky
soil
tipper
tractor
transport
truck
vehicle
work
worksite