燃やす
abstract
anthracite
background
black
business
carbon
china
coal
coal fired
coal store
coal yard
comodity
deds
dirt
dirty
domestic
dust
dusty
electric
energy
field
fossil fuel
fuel
gray
grey
heap
industry
lump
lumps
material
mined
mineral
mining
mound
open
ore
pieces
pile
pit
pollution
power
raw
reserve
reserves
resource
resources
rock
seams
shiny
solid fuel
supplier
supply
winter
yard