Ключевые слова: apparatus, ballast, complex, conduit, connection, control, drain, energy, engine, engineering, equipment, factory, faucet, flow, fuel, gas, gasoline, handhold, handle, hydrant, industrial, industry, iron, living, machine, machinery, metal, military, oil, outlet, pipe, pipeline, pond, power, pressure, pump, red, rotation, steel, stopcock, switch, tap, technology, tool, turn, two, valve, water, wheel, white,