Ключевые слова: action, ascending, building, button, choice, climbing, control, convenience, corporate, direction, efficient, electronic, elevation, elevator, emergency, engineering, finger, floor, hand, hands, indicator, indoor, infrastructure, interior, level, lift, lighting, manual, mechanism, metal, modern, movement, navigation, office, panel, pressing, push, pushing, selecting, selection, setting, stainless, structure, system, technology, transport, transportation, upward, urban, vertical,