Ключевые слова: altitude, arborist, branch, branches tree, chainsaw, climber, climbing, cut, environment, equipment, fall, forest, gardening, hanging, height, helmet, hewer, industry, job, log, logger, lumber, lumberjack, lumberman, man, manual, nature, occupation, plant, professional, protection, protective, pruning, rope, safety, saw, sawing, scandinavia, spring, surgeon, tree, tree surgeon, trimming, trunk, wood, woodcutter, woodman, woodsman, work, worker,