Ключевые слова: air valve, aqualung, bcd, beach, black, boat, bottle, buoy, compression, cylinder, deck, deepsea diving, dive, diving equipment, equipment, extreme sports, flipper, fun, metal, nitrox, nobody, oxygen, oxygen tank, oxygen tanks, people traveling, physical pressure, pressure gauge, red, regulator, safari, scuba, scuba diving, sea, snorkeling, sport, storage tank, sub, symmetry, tank, technical diving, tourism, transportation, travel, underwater, water sport,