Ключевые слова: asphalt, canalization, caucasian, condition, cover, dirty, examining, fix, garbage, glove, ground, hard, helmet, hole, industry, inside, iron, maintenance, manhole, manual, metal, old, open, pipe, protective, pump, repair, repairing, reservoir, rusty, safety, sewage, sewer, street, toilets, tube, underground, unhygienic, waste, water, worker, working, workwear, yellow,