Ключевые слова: airplane, assembly, aviation, background, car, close, closeup, combustion, complex, design, development, device, energy, engine, engineer, engineering, experiment, factory, fuel, gear, industrial, industry, jet, jetplane, laboratory, machine, machinery, mechanic, mechanical, metal, modern, part, pipe, plane, power, precision, pressure, research, rusty, science, steel, structure, system, technical, technology, transportation, tube, turbine, up, vehicle,