Ключевые слова: abstract, bonding, circle, clock, clockwork, closeup, cog, cogwheel, component, concept, conceptual, connect, connection, corona, coronavirus, covid19, engineering, equipment, gear, group, idea, industrial, industry, infection, interlocked, interlocking, linked, machine, machinery, mechanic, mechanical, mechanism, metal, metalic, objects, old, share, spin, steel, strategy, symbol, teamwork, technology, teeth, together, transmission, turn, wheel, work, worn,