Ключевые слова: activity, blade, block, breath, breath in, builder, building, cement, circular, closeup, concrete, construction, cut, cutter, danger, dust, dusty, electric, environment, equipment, foundation, glove, groove, hand, hazardous, horizontal, industrial, industry, inhalation, job, laborer, legs, machine, man, material, milling, pavement, personnel, place, power, risk, road, saw, site, tool, unfinished, wall, work, worker, workplace,