機器
big
brown coal
browncoal
bucket excavator
bucket wheel
coal
coal mine
coal mining
dig
digger
digging
earth
earth mover
energy
environment
equipment
excavate
excavation
excavator
fossil fuel
fossilfuel
fuel
garzweiler
germany
giant
hambach
heavy
heavy equipment
industrial
industry
large
lignite
load
machinery
metal
mine
mining
mining industry
open pit
ore
pit
power
quarry
site
surface mine
tagebau
technology
wheel
work