Ключевые слова: background, brick, build, canalization, canarias, cement, concrete, construction, cover, dirty, drain, drainage, equipment, grate, grid, ground, gutter, hole, industrial, industry, installation, laying, manhole, metal, nature, old, outdoor, pavement, pipe, repair, road, rusty, sand, sewage, sewer, sewerage, sidewalk, site, soil, stone, storm, street, surface, system, tube, underground, urban, wastewater, water, work,