Ключевые слова: caution, cloth, clothes, clothing, coal, concept, construction, coveralls, danger, dirt, dirty, employee, engineer, engineering, equipment, explosion, fabric, factory, gear, hard, hardhat, helmet, industrial, industry, job, laborer, male, man, methane, mine, miner, mineral, outfit, personal, power, profession, professional, protect, protective, repairman, safety, technical, textile, tool, underground, uniform, wear, work, worker, workman,