燃やす
abstract
ash
black
boiler house
burning
burnt
coal
coal quality
coal waste
coalash content
combustion
combustion waste
construction
design
dirty
effect
engineering
environment
factory
fire
fireproof
fireproof impurities
fossil
friable
fuel
fuel waste
garbage
granular
gray
hard coal
heat
hose
industrial
industry
material
particles
pollution
product
recycling
rough
scatter
sinteredash
slag
solid
stone
structure
texture
unburned
waste