機器
anthracite
black
bucket
calculations
carrier
coal
crane
dig
digger
dirty
dust
earth
energy
engineer
equipment
excavator
extraction
factory
formation
fuel
geology
gold
grab
happiness
helmet
huge
industry
large
loader
man
mine
miner
mineral
mining
moving
open
operations
practice
resourse
rock
russia
smile
soil
transport
truck
wealth
work
worker
yellow