Ключевые слова: boiler, boiler room, brown coal, buildings, bulldozer, carburizing, carrier, coal, combustion, construction, emission, energy, excavators, fuel, heap, heating plant, lignite, machinery, mill, mining, outcrop, part, power, power supply, rotation, square, stack, stacker, storage, supply, tracks, transporter conveyor, warehousing, wharf, wheel, white and red,