英文關鍵字
aerial
arial
building
cast
construction
crusher
development
dig
digger
dirt
dump
earth
earthmover
end
equipment
excavation
excavator
front
geology
ground
heavy
industry
jaw
limestone
loader
loading
lorry
machinery
mine
mineral
mining
mover
open
opencast
openpit
pit
quarry
quarrying
rock
sand
sandpit
scoop
shovel
site
soil
stone
transportation
truck
unloading
vehicle
view
work