Ключевые слова: agreement, automobile, background, bottle, car, connection, cooperation, design, disassembled, drive, engine, engineering, equipment, falling, garage, gear, gearing, generator, harmony, industry, iron, machine, machinery, macro, manufacturing, mechanism, metal, motor, part, precision, reducer, rotation, selective focus, shaft, shiny, slippery, spare, speed box, steel, technical, teeth, togetherness, tooth, torque, tractor, unity, vehicle, worker, worm, yellow,