燃やす
environmental
black
building
business
carbon
charcoal
coal
combustible
combustion
construction
cut
dark
ecology
electric
electricity
energy
environment
fossil
fuel
generator
grey
heat
heavy
icon
illustration
industrial
industry
isolated
line
lump
manufacturing
material
mine
miner
mineral
piece
plant
power
production
safe electricity
smoke
station
steam
technology
thermal
transmission
ukraine
war