Ключевые слова: apparatus, arrangement, art, circle, cogwheel, crane pulley, cylinder, dimensional, energy, engineer, engineering, evolution, factory, gear, heavy industry, hoist, industrial, industry, iron, lift, machin eparts, machine, machinery, mechanic, mechanical, mechanical parts, mechanics, mechanism, metal, metallic, old, old metal, pinion, power, precision, pulley, ring, roller, rust, rusty, rusty metal, segman, spare, steel, strength, technical, technology, tools, transmission, wheel,