Ключевые слова: brown, carpentry, conversion, detail, ecology, energy, environment, environmental, factory, firewood, forest, forestry, fuel, heap, heating, industrial, industry, load, logging, lots, lumber, many, material, nature, outdoor, pellets, pile, piled, pine, processing, renewable, resource, rural, sawed, sawmill, stack, stacked, sticks, stockpile, stockpiled, sustainable, texture, timber, traditional, transform, transformation, tree, wood, wooden,