Ключевые слова: asia, atmosphere, carbon, check, closeup, combustibles, concept, confined space, daily, danger, depletion, detect, detector, digital, emissions, engineer, environment, equipment, field, flammable, gas, h2s, hand, holding, hydrogen, industrial, industry, maintenance, man, manhole, nature, operation, operator, oxygen, people, person, production, protection, safety, security, sensor, site, station, technology, test, toxic, vessel, work, work permit, worker,