Ключевые слова: 19, apprentice, apprenticeship, bench, caucasian, coworker, drill, drilling, eardefenders, engineer, engineering, equipment, factory, female, helping, industrial, industry, learning, machine, machinery, male, manufacturing, mechanical, men, occupation, operating, people, pillar, ppe, sixties, teaching, together, trail, training, two, vertical, watching, workshop, year, young,