钒 fán vanadium Origin Definitions Defs Strokes Stroke Words Sentences Sents 五氧化二钒 wǔyǎnghuà'èrfán vanadium pentoxide vanadium pentoxide V2O5; vanadic anhydride钒钾铀矿石 fánjiǎyóukuàngshí carnotite Sources Frequency data MTSU Chinese text computingSUBTLEX-CH