Ключевые слова: 30 to 34 years, 3034 years, animal body part, animal hand, animal limb, caucasian ethnicity, closeup, communication, computer, computer monitor, connection, connections, cropped, december 2016 release, differential focus, digital viewfinder, engineer, engineering plant, hand, holding, human hand, indoors, industry, male, man, manual worker, manufacturing plant, mechanical engineering, men, mid adult, mid adult man, mid adult men, numeral, one person, only one mid adult man, orthographic symbol, part of, precision engineering, record player, record player needle, screen, selective focus, stylus, symbol, technology, touch screen, touching, turntable, using, visual aid, visual screen, worker, working,