industry, machinery, equipment, factory, device, precision, concentration, engineering, manufacturing, worker, construction, machinist, operating, production, protection, trainee, technology, woman, young, apprenticeship, apprentice, girl, learning, people, teaching, teenage, workman, auto repair shop, machine part, teenage girls, adult, protective workwear, young adult, heavy, steel, business, business finance and industry, employment and labor, education training class, student, workshop






