0 New HSK word(s):
0 Old HSK word(s):
氯化氢 [lü4 hua4 qing1] Chlorwasserstoff (S, Chem)
氢氯酸 [qing1 lü4 suan1] Salzsäure, Hydrogenchlorid, Chlorwasserstoffsäure (S, Chem)