Ключевые слова: blue, bottom, chemical, commercial, conduit, electricity, energy, engineering, equipment, field, fossil, fuel, gas, gasoline, generation, heat, huge, industrial, industry, iron, line, lines, loopable, metal, ocean, oil, oilfield, petrol, petroleum, pipe, pipeline, pipes, piping, pollution, power, production, refinery, rig, row, sea, steel, supply, technology, transport, transportation, tube, tubes, underwater, water,