Ключевые слова: and, cloud, coal, construction, digging, dirty, earth, end, energy, environment, equipment, fossil, front, fuel, generation, heavy, industrial, industry, land, landscape, level, lignite, loader, machine, machinery, maemoh, mine, mountain, mover, moving, objects, objectsequipment, order, outdoors, people, pit, pollution, power, quarry, site, sky, speed, surface, technology, thailand, time, transportation, truck, wheel, working,