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				кислород 
				
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				[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] | 
		  		
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				EN | 
			
				oxygen 
				A gaseous chemical element; an essential element in cellular respiration and in combustion processes; the most abundant element in the earth's crust and about 20% of the air by volume. (Source: MGH) 
				[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] | 
		  		
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				FR | 
			
				 
				 
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