Ключевые слова: activity, background, black, blue, bobbin, building, cable, cargo, city, coil, complex, construction, development, energy, equipment, hanging, hawser, heavy, hoist, industrial, industry, iron, landmark, lift, lifting, machine, machinery, metal, oil, petroleum, platform, power, reel, rig, rope, safety, site, sky, spool, steel, strength, technology, transformer, tree, truck, tube, up, winch, wire, work,