Ключевые слова: abstract, aircraft, airplane, assembly, auxiliary, background, bolt, braid, closeup, complex, device, electric, electrical, engine, engineering, equipment, factory, gas, hose, hydraulic, industrial, industry, jet, locking of, machine, machinery, maintenance, mechanic, mechanical, mechanism, metal, motor, nut, old, part, parts, pin, pipe, pipes, power, pump, screw, steel, system, technical, technology, turbine, unit, wire, wires, wiring,