0 Old HSK word(s):



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Hsk Characters:

HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Optokoppler (S) [guang1 dian4 ou3 he2 qi4] 光电耦合器
Thyristoroptokoppler (S, Chem) [ke3 kong4 gui1 guang1 dian4 ou3 he2 qi4] 可控硅光电耦合器