Ключевые слова: accesschamber, background, cablechamber, circle, circular, city, closeup, confinedspace, construction, cover, detail, drain, drainage, hole, industrial, industry, inspectionchamber, iron, lid, maintenancehole, manhole, metal, plate, relief, rough, round, rust, rusty, sewer, sewerage, steel, surface, texture, top, urban, utilityhole,