Ключевые слова: ancient, antique, aqua, aquatic, bolts, brass, bronze, copper, danger, deep, deep sea, dive, diver, diver helmet, diving dress, divingdress, divinghelmet, equipment, explore, gear, grunge, hard, head, heavy, helmet, history, immersion, instrument, isolated, large, marine, metal, nautical, object, obsolete, ocean, old, oldfashioned, oxygen, pressure, protective, retro, retrostyled, rusty, sea, sinking, subaqueous, submergence, submersed, swim, undersea, underwater, unique, vintage, water,