Ключевые слова: abstract, advisory, alert, atom, atomic, background, bomb, border, brick, bricklaying, brickwork, bunch, caution, cement, chemistry, constructing, contamination, crack, danger, dangerous, demolition, energy, environment, hazard, icon, industrial, laying, making, nuclear, radiation, radioactive, risk, row, rural, rusty, scrap, shiny, slate, solid, stack, stain, stone, symbol, texture, toxic, uranium, wall, warning, wave, yellow,