阿伏伽德罗常数 āfújiādéluóchángshù Avogadro's constant Origin Definitions Defs Strokes Stroke Words Sentences Sents 阿伏伽德罗 阿伏伽德羅 āfújiādéluó Avogadro Amedeo Avogadro (1776-1856), Italian scientist常数 常數 chángshù constant (math) a constant; a quantity that does not change its value