機器
燃やす
black
blast
carbon
coal
commodity
construction
dirty
dust
energy
extraction
fossil fuel
fossil fuels
geology
global warming
gravel
gray
grey
heavy
industrial
industrialization
industry
layers
manganese
manganese ore
material
mine
natural
open pit
ore
piles
pollution
pollution industry
processing
raw materials
rock
rough
sand
sediment
sedimentary rock
site
smoke
sorting
stone
striations
texture
transportation
vehicle
work