Ключевые слова: 3d, adult, assemble, businessman, businesspeople, concentrate, configure, creative, design, designer, diagnostic, education, electronic, engineering, equipment, eyeglasses, fix, genius, indoors, innovation, instrument, invention, machine, maintenance, male, man, mechanic, mechanical, mechanical engineer, mechanism, modern, owner, person, printer, printing, professional, prototype, science, skill, small business, staff, students, technician, technology, testing, up, work, workshop, workspace, young,