Ключевые слова: air, atmosphere, background, building, chimney, construction, danger, ecology, enterprise, environment, factory, firewood, forest, forestry, industrial, industry, line, log, logging, lumber, manufacturing, material, natural, nature, outdoor, pile, pipe, plant, pollution, processing, production, railways, raw, recycling, resource, sawmill, smoke, stack, timber, transportation, tree, trees, warehouse, white, wood, wooden, woodwork, woodworking, work,