Ключевые слова: 40s, apprenticeship, business, caucasian, cnc, computer, computerized, control, design, designate, drafting, electronic, engineer, engineering, equipment, factory, indoors, industrial, industry, machine, male, man, manufacturing, metal, occupation, office, panel, people, person, production, professional, program, software, steel, teaching, technician, technology, trail, training, working,