Ключевые слова: air, aqualung, autogen, black, blue, blur, bottle, breath, breathing, checkup, compressed, control, cylinder, danger, dangerous, din, dive, diver, equipment, fire, first, gage, gas, gascutting, gauge, gear, high, industry, instrument, leisure, manufacturing, metal, old, oxygen, pipe, power, pressure, pressuregauge, red, regulator, retro, rubber, rusty, safety, scuba, steel, tank, technology, under, valve,