Ключевые слова: america, border, brazil, brazilian, concept, conceptual, copyspace, dam, daytime, ecological, ecology, electric, electrical, electricity, electrification, energy, energy consumption, engine, engineer, engineering, environmental, generate, generating, generator, huge, hydro, hydro electricity, hydroelectric, hydroelectricity, industrial, industry, infrastructure, itaipu, large, machine, manufacturing, paraguay, parana, pipe, power, renewable energy, river, roadway, south america, station, technology, text space, turbine, view,