Keywords
55-59 years, advancement, african ethnicity, analyzing, color image, confidence, cylinder, day, development, equipment, europe, european, experimenting, expertise, front view, happy, hi tech, hi-tech, holding, horizontal, indoors, lab coat, laboratory, looking at camera, man, mature adult, one mature man only, one person, people, photography, portrait, posing, protection, protective eyewear, research, research & development, researching, rubber-glove, safety, science, scientific, scientist, smiling, standing, sunny, technician, tube, united kingdom, waist up, working, yorkshire, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u15694262