0 Old HSK word(s):


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Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Doppelrückschlagventil (S) [shuang1 chong2 zhi3 hui2 fa2] 双重止回阀
Rückschlagventil (S) [zhi3 hui2 fa2] 止回阀