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