Ключевые слова: aqueduct, business, butane, compressor, conduit, construction, crude, delivering, derrick, drilling, energy, engineering, equipment, extraction, factory, field, fuel, fueling, gas, gasification, gasmain, gasoline, industrial, industry, line, liquefied, main, mechanical, metal, methane, natural, pipe, pipeline, power, production, propane, pump, refinery, resources, rig, steel, storage, supply, system, technology, transmission, transportation, tube, valve, view,