Ключевые слова: accident, building, cable, city, communication, construction, cover, dangerous, drain, drainage, electricity, emergency, equipment, fix, hatch, hazard, hole, industry, inspection, job, ladder, laying, leak, line, maintenance, man, manhole, municipal, network, old, open, pipe, pit, plumbing, repair, road, service, sewage, sewer, sewerage, street, tube, underground, utility, water, well, work, worker,