Ключевые слова: agriculture, alternative, alternative energy, background, business, car, chop, commodity, construction, crane, cut, deforestation, ecology, energy, environment, equipment, fire wood, firewood, forest, forestry, fuel, harvest, harvester, harvesting, industrial, industrial background, industry, loader, log, logging, lumber, lumberjack, machine, machinery, material, nature, pine, rainforest, rural, technology, timber, tractor, trailer, transport, transportation, tree, truck, vehicle, wood, work,