Ключевые слова: background, blue, boils, bushes, chemical, clean, concrete, contamination, dirty, drain, drainage, environment, flow, flowing, green, greenery, gushing, hydroelectric, i will give, industrial, industry, kazakhstan, kolsai, liquid, natural, nature, pipe, pipeline, pipes, polluted, pollution, power, pressure, pump, river, rusty, server, sewage, steel, storm, stream, technology, toxic, treatment, tube, waste, water,