Ключевые слова: adult, african american, architect, architecture, building, civil, computer, construction, elderly, electric, employee, engineer, engineering, engineerings, equipment, factory, female, hard, hat, helmet, industrial, industry, infrastructure, lathe, logistic, man, manufacturing, mechanic, mechanical, occupation, operation, operator, people, production, professional, protection, security, senior, service, team, teamwork, technician, technology, tool, woman, work, worker, working, workshop,