機器
car
career
cast
construction
crater
curve
deep
dig
digger
drive
driving
dump
earth mover
ecology
environment
equipment
excavation vehicle
excavator
exploitation
extracting
ferric
geology
heavy
image
industrial
industry
iron
iron mining
iron ore
landscape
large
layered
material
metal
metal ore
mine
mineral
mining
nature
open
open pit mine
ore
production open cast
quarry
removing
shovel
supersize
truck
yellow