0 Old HSK word(s):


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Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
氕 + 氕 + + hydrogen-1, protium 气 氕 Vapor 氕 (PROTIUM) pie1 +




Protium (ein Wasserstoffisotop, H) (S, Chem) [pie1] 氕