Ключевые слова: branch, carpenter, chainsaw, cleaning, cold, crane, cutter, cutting, damage, elevated, engine, environment, equipment, felling, firewood, forestry, helmet, industry, log, logger, lumber, machine, mask, men, problem, profession, professional, protection, risk, saw, sawdust, sawing, security, service, snow, tools, tree, tree maintenance, trees, urban, village, winter, wood, work, worker,