Ключевые слова: adult, bark, blade, branch, business, chain, chainsaw, chip, construction, cutting, danger, dust, electric, equipment, firewood, forester, hand, industry, log, lumberjack, male, manual, men, nature, occupation, outdoors, pine, portion, safety, saw, sawdust, section, sharp, steel, stump, technology, timber, tool, tree, trunk, woods, work, worker, working,