Ключевые слова: back, cap, closeup, concept, concepts, control, cover, defender, door, doorway, edge, eye, eyelet, fine, glass, handle, hole, house, ideas, image, inspection, instrument, lid, look, macro, material, metallic, monitoring, observation, of, on, opened, optical, peephole, pinhandle, rear, safety, silver, small, space, stud, support, surveillance, system, the, to, turn, typical, uncovered, view, with,