Ключевые слова: black, bond, business, cog, conceptual, connect, connection, cooperation, design, engine, engineering, factory, force, gear, grey, hard, human, idea, industrial, industry, innovation, machine, manufacture, manufacturing, mechanic, mechanical, mechanism, metal, metallic, metaphor, part, person, power, precious, precision, production, rotate, science, shine, silver, solution, steel, success, system, team, teamwork, teeth, tool, wheel, work,