機器
black
carrier
coal
construction
crawler
dig
digger
digging
energy
environment
equipment
excavation
excavator
exploitation
factory
field
fossil
geology
ground
heat
huge
industrial
industry
large
loader
loading
mine
mineral
mining
mober
moving
open
ore
pile
pit
power
production
quarry
raw
rock
scraper
shipping
shovel
stockpile
stone
trasportation