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1Nitrogen narcosis — Inert gas narcosis [Nitrogen narcosis] Classification and external resources Divers breathe a mixture of oxygen, helium and nitrogen for deep dives to avoid the effects of narcosis. A cylinder label shows the maximum operating depth and mixture… …
2Chronologie des technologies de l'hydrogène — La chronologie des technologies de l hydrogène permet de suivre les développements des réalisations humaines depuis la découverte de l hydrogène jusqu à nos jours. Pile à combustible. Sommaire …
3Hydrogen technologies — are technologies that relate to the production and use of hydrogen. Hydrogen technologies are applicable for many uses.Some hydrogen technologies are carbon neutral and could have a role in preventing climate change and a possible future hydrogen …
