Ключевые слова: 30s, 3d, academic, aided, business, businessman, cad, casual, caucasian, computer, construction, creative, design, electrical, engineer, engineering, expressing, hispanic, horizontal, innovation, invention, laboratory, learning, man, mechanical, men, mixed, occupation, office, people, person, print, printer, printing, product, project, prototype, prototyping, race, satisfaction, school, scientist, studying, technology, twenties, two, university, usa, women, working,