Ключевые слова: abstraction, background, bangladesh, bangladesh bridge, beams, beautiful bridge, bolts, bridge, bridge support, buildings, connection, design, details, dirty river, elements, fasteners, frames, ganges river, ganges tributary, gray, hard bridge, heavy, interior, joints, long, metal, object, old, old bridge, outdoor, padma river, railway, railway bridge, river, rivers of bangladesh, rivets, road, sky, steel, steel pants, steel rivets, structures, technology, traffic, transport, travel, wide river,