四氟化硅 sìfúhuàguī silicon tetrafluoride Definitions Defs Origin Strokes Stroke Words Sentences Sents 四氟化硅 sìfúhuàguī silicon tetrafluoride noun silicon tetrafluoride SiF4 Sources Definitions CC-CEDICT
四氟化硅 sìfúhuàguī silicon tetrafluoride noun silicon tetrafluoride SiF4 Sources Definitions CC-CEDICT
